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Old Oct 25, 2010 | 05:23 PM
  #1  
goblinish15's Avatar
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From: McCall,Idaho
Year: 1991
Model: Cherokee
Engine: 4.0L high output with compressed valves
Question broke down

I was driving down the road. I try gassing it and it wont speed up. seconds later i hear a loud pop from under the car. I turn it off and now it wont start back up. Any idea what it might be?
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Old Oct 25, 2010 | 05:42 PM
  #2  
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From: McCall,Idaho
Year: 1991
Model: Cherokee
Engine: 4.0L high output with compressed valves
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annyyyyoneeeee?
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Old Oct 25, 2010 | 05:47 PM
  #3  
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From: Connecticut
Year: 98
Model: Cherokee
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Originally Posted by goblinish15
annyyyyoneeeee?
Did you try checking it for error codes?

Turn key - on, off, on, off, on (not start, just on)

A dash light should start flashing. Count the flashes and then check the manual (or write back).

Last edited by bobvalli; Oct 25, 2010 at 05:52 PM.
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Old Oct 27, 2010 | 08:45 AM
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From: Detroit, Michigan
Year: 1998
Model: Cherokee
Engine: 4.0
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Is there electric to the ignition?
Does it turn over at all?
Some more info might help...

If you don't get an answer from this forum, there are other places online to look...?
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Old Oct 27, 2010 | 08:46 AM
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From: Detroit, Michigan
Year: 1998
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Engine: 4.0
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Also, you could try getting the codes from a code reader that pplugs into your dash. They're kinda cheap now-a-days and might even be able to be rented from an auto parts store.
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Old Oct 27, 2010 | 08:52 AM
  #6  
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From: Flint/Asheville
Year: 1995
Model: Cherokee
Engine: 4.0 HO
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your description of the problem is too vague and anything would be a blind guess.
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Old Oct 27, 2010 | 03:25 PM
  #7  
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Originally Posted by BillyBoy
Also, you could try getting the codes from a code reader that pplugs into your dash. They're kinda cheap now-a-days and might even be able to be rented from an auto parts store.

I could be wrong but I don't think a 91 has an OBD connector.
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Old Oct 27, 2010 | 04:02 PM
  #8  
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From: conn.
Year: 1990
Model: Cherokee
Engine: 4.0 litre
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if it did, it would be a OBD I
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Old Oct 27, 2010 | 04:14 PM
  #9  
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From: Flint/Asheville
Year: 1995
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Engine: 4.0 HO
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^and those are expensive and hard to find. heck even the dealers dont have them
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Old Oct 28, 2010 | 06:32 PM
  #10  
goblinish15's Avatar
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From: McCall,Idaho
Year: 1991
Model: Cherokee
Engine: 4.0L high output with compressed valves
Question

I was driving down the road all is fine. Then i pressed on the gas and nothing happened nor raise of the rpm's didnt speed up and then i heard a large gunshot like sound. Then my car just lost power. Steering wheel locked up and all that like running out of gas. The car didnt shut off. It just idle and no rpm raise when stepping on the gas. Then i tried restarting it. When i tried it just cranked. It wont like spark and fire up the engine. It alll works when i turn the igniton it acts like its gonna start up but then just cranks forever!
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Old Oct 28, 2010 | 07:52 PM
  #11  
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Have you tested the spark and fuel pressure?
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Old Oct 28, 2010 | 07:58 PM
  #12  
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From: Charleston, SC
Year: 1990 - 2000
Model: Cherokee
Engine: 4.0
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Sounds like your transformer (AKA coil) blew. Check for spark.

It takes 3 things for an engine to run: compression, air/fuel in the right proportion and spark at the right time.

The only way you lost compression that quick on all cylinders is to break the crankshaft. If it ran after the gunshot, it is unlikely the case. Does the belt move when you crank it?
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Old Oct 28, 2010 | 08:32 PM
  #13  
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Year: '99
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More info needed we don't have crystal *****.
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Old Oct 28, 2010 | 08:59 PM
  #14  
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Year: 97
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More info needed we don't have crystal *****.
i do. oh wait, there not the kind needed here.

sorry. i just had to.
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Old Oct 28, 2010 | 09:32 PM
  #15  
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I would like to help but I need more info didn't think that was off topic?
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