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I am not getting power to the fuel injectors or the ignition coils on my 2002 jeep liberty limited.

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Possibly a blown fuse..

Posted on Sep 07, 2009


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1 Answer

How can I get the miss out of my 2002 jeep liberty 3.7

have a compression test done to check for valve or gasket problems
replace the HT leads with quality leads
run the fault codes
check fuel pressure to the injectors

Feb 13, 2015 | 2002 Jeep Liberty

2 Answers

I have a 2002 jeep liberty limited. wont stay running. have to stay on the gas for it to continue to run. if u let off it will die out. sounds rough an it sounds like a something flappin. wat is wrong

Could be any number of things. Bad spark plug wires. Vacuum leak. Fuel pump on the fritz. Bad TPS. Buggy fuel injector.
Is the check engine light on?
Need more input!
Either way it sounds like a qualified mechanic needs to take a look at it for you. It'll save you the aggravation of searching perpetually for a free quick fix.

Dec 16, 2014 | 2002 Jeep Liberty

1 Answer

Replacing Fuel Injectors

there is a 100s of pages for electrics in the FSM>
or at
but you must know what engine you have first.

what kind of diagram. there are many, mech. electrical, , assemble, etc.
the injectors have a common 12vdc power feed.
then each injector is fired with a single wire from PCM to each injector
this is done using a power transistor in the PCM.
it acts as a switch grounding the injector for say 5/1000 of a second
and it squirts.

Mar 22, 2014 | 2002 Jeep Liberty

1 Answer

Continuous flash of the check engine light on a 2002 Jeep Liberty Limited what could be wrong ?

spark plugs can cause misfires for sure. If you swap the number two cylinder plug with another cylinder then retest the code and the code stays on the same cylinder then its not the plug. could be coil, injector, engine mechanical. be careful not to drive to long because you could damage the catalytic convertor. thats why the check engine lamp flashes because its a catalyst damaging misfire.

Jul 15, 2012 | Jeep Cars & Trucks

1 Answer

Asd relay not operating

The ASD is what powers the fuel pump relay you need to check the engine fuse box junction for open fuse especially the fuel pump fuse and the ignition fuse. Get the ASD power corrected and the fuel pump injectors coil and reference will be back in action,check the fuse especially fuse No.23

Mar 26, 2012 | 2002 Jeep Wrangler

1 Answer

2002 jeep liberty, engine doesnt want to stay running,must give throttle,hard start. heavy misfire when running, codes P0202 and P1282. thinking its a pcm issue?

check security of the wiring for fuel injector for cylinder #2. Check resistance of this injector and compare the reading to another injector. replace if needed

There may be an issue with your fuel pump relay or its wiring. however service injector first to see if trouble code does not return

Nov 04, 2010 | 2002 Jeep Liberty

1 Answer

My 1989 jeep wrangler will run fine till it warms up then it dies and want start back up

After it dies see if you have spark or fuel injector spary. It could be your coil or pickup module inth dist. Check for fuel at the fuel rail. I have seen fuel pumps stop working once they got hot.

Feb 07, 2010 | 2002 Jeep Liberty

1 Answer

I have key is on but no power to fuel gauge and injector fuse engine cranks but no start on Jeep liberty 02

Sounds like the security system has shut down power the fuel system. That must be reset by a Jeep dealer.

Jun 13, 2009 | 2002 Jeep Liberty

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