Question about 1991 Jeep Wrangler

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It cranks but wont start. replaced starter, coil, spark wires and plugs. crankshaft position sensor, distributor and cap. still wont turn over. fuel pump turns on fine, and there is pressure at the injectors

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  • Jeep Master
  • 4,514 Answers

The ignition module probly bad-replaces points and located in distributer area--batt must also read 12.6v and alternator must be healthy--fuses may not all be good--take a light tester to um--make sure inline safety fuse on the batt line is workn

Posted on Oct 10, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 3 Answers

SOURCE: intermitent starting

sometimes the ais(automatic idle speed) valve gets loaded with
carbon. its an easy fix. you have to remove the throttle body
invert it and you will see the ais chamber and look in and see if it is
built up with soot. carb cleaner should work.if you can remove
the valve for better cleaning. peterjai

Posted on Jan 16, 2009

  • 1 Answer

SOURCE: 94 Jeep Grand Cherokee is hard to start. If I turn

Has any one soled this yet???????? Because I have the the same prob. but mine is only when it is could out blow 65 it will start but I have to keep my foot on the gas like a carb with no choke

Posted on Dec 27, 2009

  • 5 Answers

SOURCE: My 1996 Jeep Cherokee Sport dies or will not start when hot.

Sounds like the ignition coil is getting bad.

Posted on Jan 16, 2010

dj_relly999
  • 4070 Answers

SOURCE: My 1997 jeep wrangler 2.5L

Hi and welcome to FixYa!

This will be caused by a faulty distributor coil. You may want to swap the coil and observe how it goes.

Hope this helps and thank you for using FixYa! Have a good one!

Posted on Dec 13, 2010

  • 1 Answer

SOURCE: 1996 Jeep Grand Cherokee No Start

i have a 1996 jeep grand cherokee and im not getting spark to the plugs.i replaced the crankshaft sensor and ignition coil already and still having problem.if i replace the camshaft sensor would that fix the problem ??? Or what should i do ???

Posted on Jul 23, 2012

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97 oldsmobile achieva wont fire changed coil pack spark plugs cam sensor still wont start


Make sure battery has a full charge and battery connections all good.
If it cranks good but won't start, have a helper crank it while you visually check for spark at the spark plugs. If spark everywhere, use a gage and check proper fuel pressure and fuel injector pulse.
If you having a problem with more than one system, I want to check for rpm signal, that usually comes from the crank sensor. Not sure why you replaced cam sensor? I always want to check sensor wiring circuits before replacing anything. Don't replace anything unless your testing points in that direction.

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I have a 1990 dodge dakota sport with a 2.5 it stalls randomly and wont start until it sits for a few minutes. when it does die i still have fuel but no spark. all ignition parts have been replaced i.e....


Every engine has to have a way to know where the cylinders are and thus when to fire the spark plugs. Since your engine does not have a crankshaft sensor, the only means that the onboard computer has to know where the crankshaft is would be the sensor in the base of the distributor. This sensor monitors the position of the camshaft and thus can ascertain the position of the crankshaft as well. This, or the computer itself is the most likely culprit if you are failing to get spark.

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the (knock sensor) crank position sensor...is just behind the harmonic balancer, (lowest pulley on the motor) on the block, usually on the left side.
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Apr 05, 2013 | Toyota Camry Cars & Trucks

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I would check for a spark first, but you can pull of the distributor cap and check if the rotor is still turning. If it is not turning, you may have a broken timing chain. If it is turning and there is no spark, it is probably bad spark plug wires, spark plugs, distributor cap, rotor, camshaft position sensor, or crankshaft position sensor.

May 24, 2011 | 2000 GMC Jimmy

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Replaced bad fuel pump, installed new relay and fuel filter, engine turns over but is not firing on..... positive the fuel pump is pumping gas and checked to see if gas was going thru fuel filter. Tried...


Hi, Ok you have confirmed that it's not a fuel problem. You need to check for spark. Pull the coil wire off of the coil(secondary lead-looks like a spark plug wire) Have some one crank it over and listen for a popping sound. IF yes, spark is at the coil, that means all ignition sensors are working. Next check for spark at ends of wires after cap. IF no replace cap and rotor. IF yes remove a couple spark plugs and check for fouling(wet, fuel etc...) IF yes replace or clean plugs and retest for starting. IF no spark is present at coil you need to scan computer and watch for rpm signal. IF no rpm signal, replace crankshaft sensor with OEM delco part. BIGGEST problem with these engines is Cap and Rotor burn out.

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2 Answers

Wont start it cranks but nothing happens.wont turn over. put a new what you would call distributor. still nothing.


If the Starter isn't turning the engine over, but you hear a clicking sound, you may have a bad Starter.
If the Starter is turning the engine over, but you are getting no Spark, you may have a failed Camshaft or Crankshaft Position Sensor, or your Timing Belt may have jumped or broken(common on the neons).
If the Starter is turning the engine over, but you are getting Spark, you may have a failed fuel pump, fuel pump relay, or fuel pressure regulator.

Before you start replacing sensor, double check the Timing belt to ensure it hasn't broken or jumped, and check to see if you are getting a spark or not.

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Why does'int my 1986 bmw 528e start?


Do you spark at the plugs? Most likely crankshaft sensor needs to be replaced. Welcome to computer controlled cars. : (

Mar 30, 2010 | BMW 528 Cars & Trucks

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Wont start turns over but no start


1 Inspect Battery Battery Discharged or Faulty. 2 Inspect Battery Cable Corroded, Broken, Shorted or Poorly Connected Battery Cable. 3 Inspect Fuel Filter Clogged or Dirty Fuel Filter. 3 Inspect Distributor Cap Distributor Cap Cracked or Burned. 5 Inspect Coil - Ignition Faulty Ignition Coil. 6 Inspect Wireset Worn, Damaged or Faulty Spark Plug Wire(s). 7 Inspect Spark Plug Incorrectly Gapped or Fouled Spark Plug(s). 8 Inspect Starter Starter Motor Faulty. 9 Inspect Fuel Pump Low Fuel Pressure. 10 Inspect Solenoid Switch Faulty Starter Solenoid Switch. 11 Inspect Relay - Fuel Pumpat Faulty Fuel Pump Relay. 12 Inspect Fuel Injector Pressure Regulator Faulty Fuel Injector Pressure Regulator. 13 Inspect Ignition Switch Improperly Connected or Faulty Ignition Switch. 14 Inspect Starter Drive Faulty Starter Drive. 15 Inspect Fuel Injector Dirty or Worn Fuel Injectors. 16 Inspect Fuel Pump Strainer Clogged or Dirty Fuel Pump Strainerat. 17 Inspect Engine Control Computer Incorrect Operating Information Being Delivered and Sent From The EEC. 18 Inspect Fuel Tank Fuel Tank Empty. 19 Inspect Carburetor Carburetor Flooded or Faulty Choke. 20 Inspect Distributor Worn, Loose, or Incorrectly Installed Distributor.

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