802.589.0911 Live Chat With Us

Finish Selecting Your Vehicle to Shop For Your Crankshaft Position Sensor

Choose a Year for your Mercury 's Crankshaft Position Sensor

  • 2011
  • 2010
  • 2009
  • 2008
  • 2007
  • 2006
  • 2005
  • 2004
  • 2003
  • 2002
  • 2001
  • 2000
  • 1999
  • 1998
  • 1997
  • 1996
  • 1995
  • 1994
  • 1993
  • 1992
  • 1991
  • 1983
  • 1982
  • 1981

Shop By Brand

The Following brands are available based on your search.

  • Beck Arnley
    Beck Arnley
  • Delphi
    Delphi
  • Denso
    Denso
  • Dorman
    Dorman
  • Motorcraft
    Motorcraft
  • Pex
    Pex
  • Prenco
    Prenco
  • Spectra
    Spectra
  • Standard Ignition
    Standard Ignition
  • TPI
    TPI
  • True Tech
    True Tech
  • URO Parts
    URO Parts
  • WSO
    WSO
  • Walker
    Walker

Best Selling Genuine Mercury Crankshaft Position Sensors

  • We Stock the following top leading brands, including Motorcraft, Pex, WSO, Standard Ignition
  • Constantly Updated Inventory of Mercury Replacement Crankshaft Position Sensor Parts

We stock Crankshaft Position Sensor parts for most Mercury models, including Cougar, Grand Marquis, Mountaineer, Sable, Villager.

Motorcraft
1999 Mercury Sable Engine Crankshaft Position Sensor Motorcraft

P311-0BC7DEA    W0133-1705649  New

Qty:
$45.94
Motorcraft Engine Crankshaft Position Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
Brand: Motorcraft
Additional Fitment Information:
Vehicle Cylinder Head Type
1999 - Mercury Sable OHV
Motorcraft
2010 Mercury Mountaineer Engine Crankshaft Position Sensor 8 Cyl 4.6L Motorcraft

P311-2E5D31F    W0133-1700063  New

Qty:
$54.82
Motorcraft Engine Crankshaft Position Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
Brand: Motorcraft
Additional Fitment Information:
Vehicle Block Engine CID CC
2010 - Mercury Mountaineer V 8 Cyl 4.6L 281 -
Motorcraft
2011 Mercury Mariner Engine Crankshaft Position Sensor 6 Cyl 3.0L Motorcraft

P311-44254F1    W0133-1877490  New

Qty:
$23.40
Motorcraft Engine Crankshaft Position Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
Brand: Motorcraft
Additional Fitment Information:
Vehicle Block Engine CID CC
2011 - Mercury Mariner V 6 Cyl 3.0L 181 2968
Motorcraft
2005 Mercury Sable Engine Crankshaft Position Sensor Motorcraft

P311-19508CA    W0133-1701431  New

Qty:
$22.61
Motorcraft Engine Crankshaft Position Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
Brand: Motorcraft
Additional Fitment Information:
Vehicle Cylinder Head Type
2005 - Mercury Sable DOHC
Motorcraft
1997 Mercury Cougar Engine Crankshaft Position Sensor 6 Cyl 3.8L Motorcraft

P311-38D4E2D    W0133-1835761  New

Qty:
$53.93
Motorcraft Engine Crankshaft Position Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
Brand: Motorcraft
Additional Fitment Information:
Vehicle Block Engine CID CC
1997 - Mercury Cougar V 6 Cyl 3.8L 232 -
Motorcraft
2009 Mercury Sable Engine Crankshaft Position Sensor Motorcraft

P311-4AF3AF8    W0133-1934896  New

Qty:
$35.45
Motorcraft Engine Crankshaft Position Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
Brand: Motorcraft
Additional Fitment Information:
Vehicle
2009 - Mercury Sable
Motorcraft
2005 Mercury Sable Engine Crankshaft Position Sensor Motorcraft

P311-222EBD2    W0133-1874480  New

Qty:
$41.65
Motorcraft Engine Crankshaft Position Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
Brand: Motorcraft
Additional Fitment Information:
Vehicle Fuel Type Cylinder Head Type
2005 - Mercury Sable GAS OHV
Motorcraft
2011 Mercury Milan Engine Crankshaft Position Sensor 4 Cyl 2.5L Motorcraft

P311-581CB1D    W0133-1877523  New

Qty:
$75.73
Motorcraft Engine Crankshaft Position Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
Brand: Motorcraft
Additional Fitment Information:
Vehicle Block Engine CID CC
2011 - Mercury Milan L 4 Cyl 2.5L 152 2488
Pex
1999 Mercury Sable Engine Crankshaft Position Sensor Pex

P311-51EEB81    W0133-1705649  New

Qty:
$36.32
Pex Engine Crankshaft Position Sensor
Brand: Pex
Additional Fitment Information:
Vehicle Cylinder Head Type
1999 - Mercury Sable OHV
WSO
2010 Mercury Mountaineer Engine Crankshaft Position Sensor 8 Cyl 4.6L WSO

P311-2EED548    W0133-1700063  New

Qty:
$26.90
WSO Engine Crankshaft Position Sensor
Brand: WSO
Additional Fitment Information:
Vehicle Block Engine CID CC
2010 - Mercury Mountaineer V 8 Cyl 4.6L 281 -
Standard Ignition
1999 Mercury Mountaineer Engine Crankshaft Position Sensor 6 Cyl 4.0L Standard Ignition

P311-2F566C5    PC250  New

19148297 , 235-1030 , 71-5341 , 5S1758 , 235-91030 , 96TF-6C315AA , 1L2E 6C315 BC , 213-4135 , 180-0343 , DY919 , SU9723 , 147-243 , 1L2Z-6C315AA , 89053066 , SU2305 , 96TF-6C315AB , CSS802 , 19148296 , 1L2Z-6B288 , SU2035 , 213-4138 , F7TZ-6C315AA , F87Z-6C315AA , 213-1998 , F87E 6C315 AA , 917-796 , 71-4783 , SU2032 , 71-4936 , 213-4136 , 19148299

Qty:
$15.87
Standard Ignition Engine Crankshaft Position Sensor
  • Crankshaft Sensor
  • Product Attributes:
    • Connector Gender: Female
    • Terminal Type: Blade
  • Integrated A/D converter and digital signal processing with a dynamically adaptive switch point improves accuracy and operation. Advanced circuitry protects the system from stray electro-magnetic fields and power spikes. Custom magnetic circuit programming calibrates the sensor while performance testing for improved timing accuracy between the target wheel and sensor output. 100% environmental, endurance and end-of-line testing for Timing, Pulse Width and Signal Amplitude ensures consistent product reliability. Featuring the broadest sensor coverage in the market, we meet the service professionals needs with the highest quality product every time he opens the box. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle Block Engine CID CC
1999 - Mercury Mountaineer V 6 Cyl 4.0L 245 -
Standard Ignition
2004 Mercury Marauder Engine Crankshaft Position Sensor Standard Ignition

P311-56EA231    PC319  New

1W7E-6C315-AA , 600-6181 , SS10500 , 1W7Z-6C315AB , DY922 , 213-2049 , 147-256 , CSS718 , 89053117 , 917-781 , 1W7Z-6C315AA , S10086

Qty:
$23.72
Standard Ignition Engine Crankshaft Position Sensor
  • Crankshaft Sensor
  • Product Attributes:
    • Connector Gender: Female
    • Terminal Type: Blade
  • Integrated A/D converter and digital signal processing with a dynamically adaptive switch point improves accuracy and operation. Advanced circuitry protects the system from stray electro-magnetic fields and power spikes. Custom magnetic circuit programming calibrates the sensor while performance testing for improved timing accuracy between the target wheel and sensor output. 100% environmental, endurance and end-of-line testing for Timing, Pulse Width and Signal Amplitude ensures consistent product reliability. Featuring the broadest sensor coverage in the market, we meet the service professionals needs with the highest quality product every time he opens the box. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle
2004 - Mercury Marauder
Standard Ignition
2011 Mercury Milan Engine Crankshaft Position Sensor 6 Cyl 3.0L Standard Ignition

P311-4D81C71    PC418  New

907-760 , 600-6360 , 213-2502 , 5L8Z 6C315-AA , 147-214 , CY01-18-221 , 89053138 , CA0218221 , S10133 , GY07-18-221 , SU8913 , DY1007 , 180-0466 , SU292 , 5S7423 , CSS942 , GY01-18-221 , SS10200 , 22171 , GY07-18-221A , 89054240 , 2CRK0242 , 1S7Z-6C315AB , 1S7Z-63C15AB , 5S1745 , 71-5317 , 1S7Z6C315AA , 58LZ-6C315AA , 147-249 , 71-4916 , 213-2070

Qty:
$19.07
Standard Ignition Engine Crankshaft Position Sensor
  • Crankshaft Sensor
  • Product Attributes:
    • Connector Gender: Female
    • Terminal Type: Blade
  • Integrated A/D converter and digital signal processing with a dynamically adaptive switch point improves accuracy and operation. Advanced circuitry protects the system from stray electro-magnetic fields and power spikes. Custom magnetic circuit programming calibrates the sensor while performance testing for improved timing accuracy between the target wheel and sensor output. 100% environmental, endurance and end-of-line testing for Timing, Pulse Width and Signal Amplitude ensures consistent product reliability. Featuring the broadest sensor coverage in the market, we meet the service professionals needs with the highest quality product every time he opens the box. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle Block Engine CID CC
2011 - Mercury Milan V 6 Cyl 3.0L 181 2968
Standard Ignition
2001 Mercury Sable Engine Crankshaft Position Sensor 6 Cyl 3.0L Standard Ignition

P311-52493EB    PC434  New

SS10202 , 147-220 , SU2377 , CSS949 , 89054254 , SU2329 , 5S1748 , S10054 , 71-4920 , 213-2516 , 600-6362 , DY917 , DY995 , 1F1Z-6C315BB , 147-253 , 89054307 , 907-762 , 1F1Z-6C315BA , 22173

Qty:
$29.46
Standard Ignition Engine Crankshaft Position Sensor
  • Crankshaft Sensor
  • Product Attributes:
    • Connector Gender: Female
    • Terminal Type: Blade
  • Each sensor has integrated Analog Digital (A/D) converter and digital signal processing with dynamically adaptive switch points improving accuracy and operation. Advanced circuitry protects the system from stray electro-magnetic fields and power spikes. Custom engineered magnetic circuit programming calibrates the sensor while performance testing improves timing accuracy between target wheel and sensor output. Integrated A/D converter and digital signal processing with a dynamically adaptive switch point improves accuracy and operation. Custom magnetic circuit programming calibrates the sensor while performance testing for improved timing accuracy between the target wheel and sensor output. 100% environmental, endurance and end-of-line testing for Timing, Pulse Width and Signal Amplitude ensures consistent product reliability. Featuring the broadest sensor coverage in the market, we meet the service professionals needs with the highest quality product every time he opens the box. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle Cylinder Head Type Block Engine CID CC
2001 - Mercury Sable OHV V 6 Cyl 3.0L 182 2986
Standard Ignition
2007 Mercury Monterey Engine Crankshaft Position Sensor Standard Ignition

P311-42A11F5    PC51  New

89054284 , 19148290 , 907-765 , DY1014 , 2CRK0154 , 147-211 , SU294 , CSS30 , 2-96134 , XF2Z-6C315AA , 213-4131 , 1F2Z-6C315AA , 4F2Z-6C315BA , 1F2Z6B288AA , 213-4129 , 22120 , 1F2E-6C315AA , 19148291 , 5S1750 , 19148292 , 213-2569 , 71-4922 , F48E 6C315 CB , 213-2546 , 235-1069 , 213-4130 , 600-6365 , SS10183 , F4SZ-6C315A

Qty:
$25.07
Standard Ignition Engine Crankshaft Position Sensor
  • Crankshaft Sensor
  • Product Attributes:
    • Connector Gender: Female
    • Terminal Type: Blade Terminals
  • Integrated A/D converter and digital signal processing with a dynamically adaptive switch point improves accuracy and operation. Advanced circuitry protects the system from stray electro-magnetic fields and power spikes. Custom magnetic circuit programming calibrates the sensor while performance testing for improved timing accuracy between the target wheel and sensor output. 100% environmental, endurance and end-of-line testing for Timing, Pulse Width and Signal Amplitude ensures consistent product reliability. Featuring the broadest sensor coverage in the market, we meet the service professionals needs with the highest quality product every time he opens the box. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle
2007 - Mercury Monterey
Standard Ignition
1998 Mercury Sable Engine Crankshaft Position Sensor 6 Cyl 3.0L Standard Ignition

P311-2A60379    PC68  New

213-2551 , F43E 6B288 AA , 147-215 , SS10103 , 1F1Z-6C315AB , 5S1747 , CSS117 , 180-0624 , SU6409 , 89054289 , DY916 , 600-6182 , 917-782 , SU12953 , SU2028 , 71-5425 , 022 002 0001 , 71-4919 , F5DE 6C315 BA , F6DZ-6C315A , 1F1Z-6C315AA

Qty:
$22.08
Standard Ignition Engine Crankshaft Position Sensor
  • Crankshaft Sensor
  • Product Attributes:
    • Connector Gender: Female
    • Terminal Type: Blade
  • Integrated A/D converter and digital signal processing with a dynamically adaptive switch point improves accuracy and operation. Advanced circuitry protects the system from stray electro-magnetic fields and power spikes. Custom magnetic circuit programming calibrates the sensor while performance testing for improved timing accuracy between the target wheel and sensor output. 100% environmental, endurance and end-of-line testing for Timing, Pulse Width and Signal Amplitude ensures consistent product reliability. Featuring the broadest sensor coverage in the market, we meet the service professionals needs with the highest quality product every time he opens the box. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle Cylinder Head Type Block Engine CID CC
1998 - Mercury Sable DOHC V 6 Cyl 3.0L 181 2968
Standard Ignition
1998 Mercury Sable Engine Crankshaft Position Sensor 6 Cyl 3.0L Standard Ignition

P311-2B06DFE    PC74  New

1F21-67-082A , 213-4127 , 71-5013 , 147-219 , DY918 , S10075 , 213-2555 , 1F1Z-6C315DA , 89054293 , 1FIZ-6C315DA , ZZM1-67-082 , 1F1Z-6C315DB , 907-774 , 22168 , 19148288 , CSS59 , 600-6374 , 71-4917 , 213-4128 , 19148289 , SS10228 , 180-0468 , SS10192 , SU5779 , 235-1130 , 2-96137 , 2CRK0063 , F3DE 6C315 AB , SU4101 , 5S1832 , F3DZ-6C315AFFV , 213-4137 , 1F21-67-082 , 5S1746 , 19148298

Qty:
$29.47
Standard Ignition Engine Crankshaft Position Sensor
  • Crankshaft Sensor
  • Product Attributes:
    • Connector Gender: Female
    • Terminal Type: Blade Terminals
  • Integrated A/D converter and digital signal processing with a dynamically adaptive switch point improves accuracy and operation. Advanced circuitry protects the system from stray electro-magnetic fields and power spikes. Custom magnetic circuit programming calibrates the sensor while performance testing for improved timing accuracy between the target wheel and sensor output. 100% environmental, endurance and end-of-line testing for Timing, Pulse Width and Signal Amplitude ensures consistent product reliability. Featuring the broadest sensor coverage in the market, we meet the service professionals needs with the highest quality product every time he opens the box. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle Cylinder Head Type Block Engine CID CC
1998 - Mercury Sable OHV V 6 Cyl 3.0L 182 2986
Standard Ignition
1999 Mercury Villager Engine Crankshaft Position Sensor Standard Ignition

P311-1CB655F    PC132  New

SU4238 , 2CRK0226 , 917-737 , 180-0465 , 23731-1B000 , SU4166 , 235-1129 , 71-5051 , SS10119 , CSS590 , 89054112 , S10104 , CAS0006 , SS10131 , 213-2374 , 22356 , 2-96085 , 147-727 , 5S1869 , 23731-4E810

Qty:
$44.27
Standard Ignition Engine Crankshaft Position Sensor
  • Crankshaft Sensor
  • Genuine Intermotor Quality
  • Product Attributes:
    • Connector Gender: Female
    • Terminal Type: Blade
  • Integrated A/D converter and digital signal processing with a dynamically adaptive switch point improves accuracy and operation. Advanced circuitry protects the system from stray electro-magnetic fields and power spikes. Custom magnetic circuit programming calibrates the sensor while performance testing for improved timing accuracy between the target wheel and sensor output. 100% environmental, endurance and end-of-line testing for Timing, Pulse Width and Signal Amplitude ensures consistent product reliability. Featuring the broadest sensor coverage in the market, we meet the service professionals needs with the highest quality product every time he opens the box. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle
1999 - Mercury Villager
Standard Ignition
1998 Mercury Villager Engine Crankshaft Position Sensor Standard Ignition

P311-1CB655F    PC132  New

SU4238 , 2CRK0226 , 917-737 , 180-0465 , 23731-1B000 , SU4166 , 235-1129 , 71-5051 , SS10119 , CSS590 , 89054112 , S10104 , CAS0006 , SS10131 , 213-2374 , 22356 , 2-96085 , 147-727 , 5S1869 , 23731-4E810

Qty:
$44.27
Standard Ignition Engine Crankshaft Position Sensor
  • Crankshaft Sensor
  • Genuine Intermotor Quality
  • Product Attributes:
    • Connector Gender: Female
    • Terminal Type: Blade
  • Integrated A/D converter and digital signal processing with a dynamically adaptive switch point improves accuracy and operation. Advanced circuitry protects the system from stray electro-magnetic fields and power spikes. Custom magnetic circuit programming calibrates the sensor while performance testing for improved timing accuracy between the target wheel and sensor output. 100% environmental, endurance and end-of-line testing for Timing, Pulse Width and Signal Amplitude ensures consistent product reliability. Featuring the broadest sensor coverage in the market, we meet the service professionals needs with the highest quality product every time he opens the box. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle
1998 - Mercury Villager
Motorcraft
1996 Mercury Tracer Engine Crankshaft Position Sensor 4 Cyl 1.9L Motorcraft

P311-2563F76    W0133-1701796  New

Qty:
$31.00
Motorcraft Engine Crankshaft Position Sensor
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
Brand: Motorcraft
Additional Fitment Information:
Vehicle Block Engine CID CC
1996 - Mercury Tracer L 4 Cyl 1.9L 116 -

Latest Mercury Repair and Crankshaft Position Sensor Installation Advice

CarJunky AutoAdvice

1994 v6 3.8l Mercury Cougar stalling and quits

Showing 2 out of 3 Posts | Show 1 Hidden Posts
Question From edsblkcat on 1994 v6 3.8l Mercury Cougar stalling and quits

I have a 1994 Mercury cougar 3.8l . I have replaced the thickfilm ignition module. The MAF.and plugs wires rotor and caps. But it stalls. And will not run. it will turn over but doesnt seems to get gas. pump works. It whirrs like normal when the keys is turned replaced the filter. But it might start in ten minutes or or a half hour or an hour it will idle for ever but once its driven it will stall but no telling when. I can drive the car it will just shut off. Disconnect the MAF it mmight start. Disconnect the battery wait ten it will start sometimes. somes it migth be an hour or before it starts.

It started running odd a year ago when I would drive down through a valley(summer time) and the air was decidedly cooler it would run bad, press the gas it would bog down let off the gas it would take off(replaced the MAf seemed to solved that.).

Response From Double J Top Rated Answer

Just a thought...

I have seen some that have a faulty camshaft position sensor (hall effect switch)....inside the distributor that can cause this type of concern.
Also could have a faulty crankshaft position sensor.

Response From dave284

A bad throttle position sensor , water in the gas, even a speed sensor that and what Jim stated. I would start with having the trouble codes read if the check engine light came on, could save time and money

Mercury Sable 97 does not start

Showing 5 out of 5 Posts
Question From oddgca on Mercury Sable 97 does not start

Mercury Sable 1997 Wagon 3 ltr
160000 km

Sable 1997 not starting

The engine cranks well. Tank is ¾ full. Fuel pump seam to work. I noise is heard when listening at the fuel filler cap and the ignition is switched on. By using a digital OBD2 car reader, no new trouble code is seen (the car runs since about one year without a working camshaft position sensor. Code PO340 is present. However I was told by an expert, that the car will function well without it as long the crankshaft position sensor works).
The car worked well for two days, after it was not used for about four weeks. The engine stopped on two occasions after it was started, but restarting was successful. It failed to start after it was parked overnight at very low temperature of about -15 C (10 F). Heating up the engine by a block heater and an additional heater inside the engine compartment did not solve the problem.
I assume that either the fuel supply is blocked or the ignition does not work. Tomorrow I will check the ignition by removing a spark plug and checking for proper sparks. Could it be that the fuel filter is frozen?
How can a proper fuel flow be checked? I learned that before touching any fuel line the fuel pressure should be released. How and where can it be done?
I would appreciate very much any help in the matter.
Otto

Response From oddgca Top Rated Answer

It is a 3.0 l OHV engine.

Is batch firing detrimental to the engine, ignition coil, spark plugs, injectors, PCM and others? I gave up looking for a low cost camshaft position sensor a time ago. I will try again to find one at a reasonable price.
I got the engine started after checking the ignition sparking, heating up the engine, fuel filter, fuel rail, adding Gas Line Antifreeze and Gas Treatment to the fuel. I hope the car will start again after the cold night coming up.

Response From Hammer Time

I will try again to find one at a reasonable price.

What does that mean? How are you determining what should be a reasonable price for that particular part. It costs what it costs.

Response From oddgca

It is an old car and old cars don't hold forever in the harsh climate of Canada. Maybe it is time to buy a newer one.
Happy New Year

Response From Discretesignals

3.0L OHV or DOHC?

There is a pressure test port on the fuel rail you can connect a fuel pressure gauge to.

You do need to have the cam shaft sensor problem fixed. It will run, but the fuel system is batch firing the injectors instead of using the sequential method. If it is the OHV engine, a common problem is the cam shaft synchronizer wears out and wipes the sensor off and blends it up inside the housing. You don't want the synco locking up because it happens to drive the oil pump.

Nissan sentra wont accelerate

Showing 2 out of 10 Posts | Show 8 Hidden Posts
Question From tj210409 on Nissan sentra wont accelerate

I have a 98 nissan sentra 1.6L. When I first start my car for the day it doesn't have much issue speeding up. Once it warms up completely it starts to stutter when I try to accelerate and wont go. It struggles to get over 20mph and eventually gets so bad that the gas pedal ceases to work and the car will die. I have to let it sit and get cold before it will restart. No lights on except check engine but the Only code I have coming up is vacuum cut valve bypass valve. I did new spark plugs, crankshaft position sensor and fuel filter. I'm at a loss for what to do next.

Response From Hammer Time

What is the code number?
How many miles on the car?

Response From tj210409

P1491 I checked it out and that code is vacuum cut valve bypass valve malfunction. It just turned over 100,000 miles....

Response From Hammer Time

I would probably have the exhaust system pressure tested for restrictions. You should see no more than 1 PSI.

Response From tj210409

How do I do that

Response From Hammer Time

They will remove the upstream 0/2 and install a low scale pressure gauge.

Response From tj210409

Is it something shops do?

Response From Tom Greenleaf

Yes. Your symptoms are consistent with a restriction and at least needs to be ruled out BEFORE the converter which is most likely but could be a bent up pipe after the cat/con, T

Response From tj210409

Is there any way to check it myself

Response From Tom Greenleaf Top Rated Answer

Do you have a vacuum gauge, assorted hose and "T" fitting available to you? If not stop now and go get this checked for normal backpressure.


If you did and can identify ACTUAL MANIFOLD VACUUM source hose and connect in should read about 18Hg +/- (Hg = inches of mercury) at idle. Deduct 1 Hg for each 1,000 ft of elevation you are at. Then, without load on engine raise RPM to about 2,000 and it should read the same as at idle. Old but telling of a restriction if it reads lower. Some would loosen exhaust before converter and see if power returns just a quick test.


You want to save a buck and understand but if you don't have stuff for testing it's not practical IMO for DIY never mind the fix whatever is found. You can ask for a diagnosis only and decide on doing it or not yourself. You decide that and take the consequences of breaking something for lack of some experience in what the actual problem is.......


Tom


The actual backpressure # is much preferred. As HT said not more than 1 PSI.