2002 Jeep Liberty Logo

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Anonymous Posted on Jun 29, 2014

Where is the map sensor on a 2002 liberty

No engine stated, !!

2 Related Answers

Anonymous

  • 398 Answers
  • Posted on Mar 10, 2009

SOURCE: 2002 jeep liberty 3.7 engine where is knock sensor

get the pcm computer checked first for errors.
The 2 knock sensors are bolted into the cylinder block under the intake manifold. The sensors are used only with the 3.7L engine.
http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c15280221909

what are your sysptoms of no start?

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Anonymous

  • 836 Answers
  • Posted on Jan 16, 2011

SOURCE: 2006 diesel Liberty has check

You need to have it scanned to find out the real problem.

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0helpful
1answer

2004 jeep cherokee idles high when started and stays high?

all jeeps use a MAP sensor
"speed density system" ways and means.
and all race with air leaks, (aka. vacuum leaks) with full power.
did you scan the PCM first?. that be first in every case.
if not , you work totally blind. (must we?)
no engine stated. (size and fuel matters)
making accurate answers impossible.!

2004 Cherokee, not here, not in USA< on this USA forum.
my guess its really a

"KJ / Since 2002 The Liberty (called Cherokee outside USA, very odd that)"
so to USA readers its a Liberty. for sure.
in what country ive not a clue, nor what engine options
they use THERE.

i have the 2002,and 05 KJ FSM book.
i see the exports have diesels. got diesel?
our KJ have 2.4L or 3.7L engines.
both race , with vacuum leaks.

one leak that can happen (not guessing)
1: throttle plate gunked up and now leaks air, because the throttle can not close fully.
2: ISC stuck open. (idle speed control valve)
3: vacuum hoses cracked, or just fell off.?

and 50 more ways to leak air, huge.. .in the real world.
we pinch hoses and use propane gas to find leaks
or the smoke machine.
0helpful
1answer

2002 jeep liberty overheating

no engine size stated, so impossible to be detailed
and anonymaous, too boot.
i bet you already asked and got an answer , on older post.
why do that that to expert help./?
0helpful
1answer

Need a wiring diagram for map sensor in 2006 Jeep Liberty 4x4 3.7L

Go to autozone and ask for the wiring diagram. They will print one for you for free. If you dont have an autozone near you try another parts store. If you purchase a haines of chiltons manual ($25 in a retail store or $18 on amazon), it will have a detailed wiring diagram of the MAP sensor.

Good Luck!
1helpful
2answers

I got a jeep 2.5 crd that doesnt want to start

Should be bolted to the right front side of the engine head.

The right side is as you are sitting in the drivers seat. Anytime car parts are labeled left or right it is as viewed from the driver's seat.

It you are facing the front of the engine it will be on your left.
3helpful
1answer

2002 Jeep Liberty - 3.7 Liter - Engine has begun to die when rpm is at or near idle. Such as pulling into a parking place or stopped at traffic light. More frequent after engine has warmed. Once engine...

I would start with cleaning the throttle bore and plate. Then clean the Idle Air Control valve, IAC, as this is the device that controls idle speed. Use a can of spray carb cleaner and an old toothbrush. Trouble with the IAC would make sense if you can keep the engine going by holding down the gas pedal a bit.
Use the carb cleaner to check for vacuum leaks at hose connections and elbows. run engine and spray short bursts at hoses and listen for idle speed changes.
And lastly if problem is still there check MAP sensor.
2helpful
3answers
0helpful
1answer

Timing tool for 2002 jeep liberty 3.7L

there is no timming tool, timming is set and maintained by the engine controller. there is also a map sensor on the front of manifold.
1helpful
1answer

2002 Jeep Liberty P0174 code and mech has changed the o2 sensor

Can't tell you exactly what is wrong but the one thing you said is of concern...Map sensor should not be full of oil. If it is, I'd want to know why. In finding the reason for that, you may also find the reason why you are having a problem.
Jeep uses two kinds of engine crank venting. you either have a pcv valve or an orifice controlled system. If either are obstructed it can overpressure the crankcase and cause all kinds of problems.
Years of experience tells me this isn't something I can guess at and be 100% sure I have the right answer but based on what you said, I'd look there first!
3helpful
1answer

2005 jeep liberty diesel code # p0101 map- sensor out of range what is map

The MAP sensor (MANIFOLD ABSOLUTE PRESSURE) changes voltage or frequency as intake manifold pressure changes (air flow increases or decreases). The engine's computer uses the reading to advance or ****** engine timing. On older, non-fuel injected engines the vacuum advance on the distributor did basically the same thing.
The MAP sensor also works with other sensors on the Jeep engine, specifically the Throttle Position Sensor (on the throttle body) and Crank Position Sensor (on the transmission bell housing) to control other fuel flow and ignition timing functions.
If you're having problems with the MAP sensor, or are getting a Check Engine light and code for the MAP sensor keep in mind that other problems may cause that error code.
Bad vacuum hoses, vacuum leaks, bad EGR valves, intake manifold leaks, clogged air filter can all affect the MAP. sensor. To know for sure all the other sensors should be checked for correct voltage and perimeters
Also, if you have done any mods to the engine, especially intake, exhaust and ignition mods you may get an error code for the MAP or incorrect reading and a resulting loss in power or increased fuel usage.
The map sensor is easy to change with a couple screws off the Throttle body.. The part the air inters (the air breather). Buy one from the auto parts store if your sure that is the problem and just replace it..There is no adjustments to it...

It really sounds to me that you have a small vacuum leak in a line somewhere.You can try spraying the motor vacuum lines with soapy water with the vehicle running to find a leak. Also listen and feel under the dash for leaks and hissing sounds.
Hope this helps.......
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