Car Tech

General discussion

1995 jeep cherokee country wont start

by jeepguy95 / April 27, 2007 10:01 AM PDT

i have a new motor, distributor, wires, plugs, altenator, crankshaft positioning sensor, exhaust manifold, o2 sensor, and new coil. i have pleanty of fuel to the fuel rail around 30 lbs while cranking. ive tried everything to make it start but it just wont fire. i got spark to the plugs while cranking. i started it the other day and it fired but i had to hold the pedal to the floor to get it to fire up but had to feather it to keep it running so i shut it down. then i seen some smoke come from the rear of the engine looked like it was commin from the bell housing but not too sure. once i looked at everything to make sure that i didnt forget to hook up any wires or sensors (didnt find anything) i tired to start it again and wouldnt start. while i try to crank it over it seem sluggish but if i hold the throttle wide open it cranks faster like its going to start but just dosent....please help. thanx

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another note
by jeepguy95 / May 2, 2007 7:19 PM PDT

well i was reading someone eles thread about the cps sensor and i noticed that my bellhousing is almost 1/4 inch away from my motor...would this cause the sensor to work properly???

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well..
by jeepguy95 / May 22, 2007 10:57 AM PDT
In reply to: another note

i just tightened the bolts on the tranny and i got it to start...now it idles really low and when i floor it its un responsive like its delayed then kicks in but if i put it in gear it just wants to die and has no power...please help

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ok ok now i dont know anything
by jeepguy95 / May 22, 2007 1:22 PM PDT
In reply to: well..

i just replaced the air idle control valve and it starts and runs great but i have no power when i put it in gear...i really dont know how to explain it but ill try...ok in gear with the brakes pressed and it just bogs down but wont die....and when ran for awhile the ehaust manifold starts to glow but my engine temp only reads around 220. please help....

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Ignition timing
by Andy77e / May 28, 2007 6:36 AM PDT

Ehaust manifold glowing means that your ignition timing is ********. The spark plugs are firing very late, meaning that the exhaust valve opens before the burn is complete (cause it's firing late) and it's still burning in the exhaust manifold, which makes it hot and glows.

So first fix the obvious problem. You may find other problems later, that this ones a no brainer. You must fix the ignition timing. How to fix it? Not sure how your engine is setup. If you have a distributer, the distributer needs to be properly set. You'll need a manual to figure out how to time it correctly. If it doesn't, then there's a Cam shaft Sensor that tells the computer when to fire the plugs. That sensor may need replaced, or checked to make sure it is installed correctly. Lastly, if there is no distributer, the PCM computer itself may be the problem.

No matter the cause, this must be fixed first. Spark plugs firing at the wrong time is very bad. This explains why you have no power once your in gear. Fixing any other problem is a waste of time, until you get the ignition timing fixed.

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thanks
by jeepguy95 / May 29, 2007 7:10 PM PDT
In reply to: Ignition timing

ok ill give that a try thank you.

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1995 Jeep
by pamcak2011 / April 13, 2011 12:36 AM PDT

I am having the same problem with my Jeep. Did you find a resolution to your problem? Can you please let me know what you found out. Thanks

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