Question about 2000 Jeep Grand Cherokee

1 Answer

I HAVE A CHECK ENGINE LITE ON, CODE SHOWS GOVENOR SENSOR VOLTSGE TO LOW OR TO HIGH. I REPLACED BOTH THE SENSOR AND SOLINOID ABOUT 13 MO AGO.IS IT POSIBLE THEY FAILED AGAIN.

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  • Jeep Master
  • 20,706 Answers

Why not post the code and not make us guess.???
no, it didnt fail again, someone guessed wrong.

take car to any ASE shop or transmission shop and win.
they will do diagnosis and find the real cause.

no code, no joy.

2000 wj

RTM yet,
here
http://www.morris4x4center.com/knowledge-base/index.htm?utm_source=cj#service

see those pages on DTC errors. p07xx errors. and friends
and the statements on how to test further.....

Posted on Dec 26, 2015

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

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Posted on Jan 02, 2017

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Anonymous

  • 837 Answers

SOURCE: 2001 Jeep Grand Cherokee code P1391

I would check to be sure that the timing chain hasn't jumped at all ..

Posted on Mar 25, 2009

Anonymous

  • 6 Answers

SOURCE: 94' cherokee transmission problem, no 1st gear?

A technicians worse nightmare....Replace a part and a bigger part fails....its a coincedence ive personally have had it happen. a customer will disagree....its possible trans just failed

Posted on Aug 25, 2009

kirkx

Kirk Augustin

  • 2019 Answers

SOURCE: 2006 Jeep Grand Cherokee 5.7L engine, Hemi, sensor code P1129

The OBD is not that simple.

All it is saying is that it does not like the air/fuel mixture.
That can be from fouled spark plugs, an open gas cap or other intake leak, a bad O2 sensor, PVC foam on the air mass sensor, throttle position sensor, etc.
It is just like any carb engine when the mixture is bad.
You can't just read a number and know what to replace.
You have to have a feel for the symptoms.
And if there are no other symptoms, it could be the code is simply the only thing wrong.

Personally my best guess would the air mass sensor.
Look the inside of the oil cap. If there is foam there, then there is likely foam in the air mass sensor as well. PVC systems always throw foam into the sensor, and the only solution is to splice longer hoses into the system and into a condenser of some sort. This is worse in northern climates, in the winter. Most cars in cold conditions have this happening all the time. But as long as the light goes off eventually, don't worry about it.

Posted on Jul 28, 2010

Jonah Oneal

  • 14092 Answers

SOURCE: 1993 Grand Jeep Cherokee.

CODE 51 AIR FUEL AT LIMIT OXYGEN SENSOR SIGNAL INPUT INDICATES LEAN AIR FUEL RATIO CONDITION DURING ENGINE OPERATION. CODE 62 EMR MILEAGE NOT STORED UNSUCCESSFUL ATTEMPT TO UPDATE EMR MILEAGE IN THE CONTROLLER EEPROM. POSSIBLE CAUSE FOR A LEAN AIR FUEL RATIO AIR LEAKS IN INTAKE MANIFOLD, LEAKS IN EXHAUST PIPES, LEAKS IN EXHAUST MANIFOLD,LOW FUEL PRESSURE FUEL FILTER CLOGGED OR PRESSURE REGULATOR FAULTY,ONE OR MORE FUEL INJECTORS RESTRICTED,VACUUM HOSE IS DISCONNECTED BROKEN LEAKING OR LOOSE.

Posted on Aug 27, 2010

onebadsnakeb

Aaron Trende

  • 147 Answers

SOURCE: check engine light is on.

May need to disconnect Positive battery cable for a few minutes to reset codes.

Posted on Sep 02, 2011

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