Question about 1989 Jeep Comanche

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Jeep comanche acts like it is starving for fuel.

My 1989 jeep comanche (2.5L) hesitates when taking off. It acts like it is not getting enough fuel. I have changed the fuel filter and there was no change. The fuel appears to be spraying in a consistant cone shape.
I can feather the gas pedal and it comes out of it a little. It is also sometimes dies when I stop but always restarts easy.
Thanks

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  • Contributor
  • 6 Answers

Check your adjustment on your carburetor sounds like its a little off on the settings

Posted on Jun 06, 2009

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czaa
  • 4514 Answers

SOURCE: just changed map sensor fuel

shud get it scanned properly with a tech ll that runs a data stream--cud also have bad ignition wires-distributer cap or egr valve--injector pulse cud be faulty or the idle control area is dirty causing the little motor to run wrong

Posted on Jun 22, 2011

6ya6ya
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Posted on Jan 02, 2017

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1 Answer

92 Jeep Comanche bucks under load/idles fine


You've already replaced most of the stuff I've guessed, unless perhaps the fuel pump is faulty or there's something partially clogging the fuel line. Maybe put a fuel system cleaner additive to the tank? Other thing is perhaps the coil.

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My 1991 jeep comanche sputters when in 3rd at bout 3 grand.does it have a revlimiter?


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the bottom exh tube under my bell housing , the clamp breaks every 6 months ( i welded up a life time clamp) this allowed the

exhaust down tube, to flex and whole exhaust to act as silly pendulum. this put stress on my SST headers causing crackes.

this in turn let fresh air suck in to the header and slam the oxygen sensor to the rails, (car ran rich a s pig and could not keeps spark plugs clean.)

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sputter is misfire.

the 91 does not have misfire detection in the ECU,

not till 1996.

so you are the detector.

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are the cream color or black.????????????

if black, post back.

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Sounds like it is starving for fuel...the other guys sound right...check your fuel filter and fuel pressure...if the filter is nearly stopped up the pump would build pressure which would "push" past the filter and make it feel more powerful...then as the pressure drops it starts to starve again until the pressure builds up enough. Also, with the vehicle parked and running, get someone to rev it up while you feel the air coming out of the exhaust...if it isn't a good amount of pressure coming out of the tailpipe, your converter may be stopping up. be careful not to get burned by the exhaust though.

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1987 jeep comanche has new fuel pump,won't start


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1 Answer

1991 Jeep Comanche


make shour that the fuel pump is pumping enough but if it is check you lines leaving you pump for a clog push air thru them the blead the system so that you have fuel up at the engine.

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