Question about 1996 Jeep Grand Cherokee

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My jeep hesitates while i am driving

My jeep wants to turn off when i am at a light or stop side i have change coil, spark plugs and wires, and fuel filter, alone with rottor cap.

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  • jessicahgarc Jul 29, 2009

    I have check the light and it told me to change every thing i mention and then some. Now the light comes on sometimes.

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CHECK ENGINE LIGHT? YOU MIGHT WANT TO START THERE IF ITS ON

Posted on Jul 29, 2009

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1 Answer

Crank, won't start problem. I checked the spark plugs on Jeep 98. Looks good. Could it be the crank sensor or starter coil?


Yes it is very much possible.But there are many other possibilities too,including starter and spark plugs issue.

If your engine cranks normally but will not start because it has no spark, or it stalls and won't restart because it has no spark.

You can also do a test to confirm the problem .The procedure to do the test is as follows:---

If your engine has spark plug wires, disconnect one of the plug wires from a spark plug and place the end of the wire near a metal surface on the engine. Then insert a small Phillips screwdriver into the end of the wire (the plug boot), or a small bolt or nail to provide a conductive path. Then crank the engine and look for a spark to jump from the screwdriver, bolt or nail in the end of the plug wire to the engine. If you do not see a spark, there is an ignition problem.

OR-----------

If your engine has a coil-on-plug ignition system with no plug wires, In that case remove one of the coils from the spark plug and insert an old spark plug, a spark plug tester or a screwdriver into the end of the coil. Ground the spark plug or plug tester to the engine, then crank the engine and look for a spark. No spark indicates an ignition problem.If the engine has no spark, check for voltage at the coil positive terminal when the ignition key is on. If NO voltage, then problem is on the trigger side of the coil (pickup, crank sensor, ignition module or primary wiring circuit).

But If there is NO voltage at the coil itself, then in that case the problem is on the supply side (the ignition switch or ignition wiring circuit).-----------------

Jeep cranks but no start:----------------

A jeep that cranks over but doesn't start, in many cases will be due to a bad fuel pump, a broken timing belt, an inoperative cam sensor or crank sensor. Also these problems are related to faulty spark plug. Check the spark at spark plugs when you start the jeep. Do you notice any spark. Actually you should see. If in case there is no spark then it's a spark plug problem. Also the coil pack gives power to spark plug. So check the voltage at coil pack. It will show 12 volt. If there is no voltage noticed at coil pack then its faulty coil pack that has to be replaced. If all the possible options checked out ok then check the car starter. The starter gets power from battery to start the jeep. If the starter is faulty then it will not let the car to start. Also check and confirm that there is fuel in the jeep. If its very low fuel then in some cases this causes the problem. Also check and confirm that fuel pump is functioning properly and the fuel filter is not clogged. One of the easiest ways to check for a fuel pump related problem is to spray a little starting fluid into the air intake while trying to start the jeep. If the car starts momentarily, then there's a good chance the fuel pump is not working or the jeep is out of gas. You can also listen for the fuel pump's humming sound when the key is first turned on. Also if a inoperative fuel pump is suspected, a good technician will always check to verify there is power and ground being supplied to the pump, to eliminate the possibility of a bad relay or electrical issue. Fuel pressure can be checked with a pressure gauge and if there is pressure, pulse can be checked at the fuel injectors in several ways including the most common, with the use of noid lights. If the injectors don't have pulse the engine won't start. ---------- This troubleshooting tips will help you to solve the problem. Thanks. Helpmech.

Jan 07, 2011 | Jeep Cherokee Cars & Trucks

2 Answers

93 JEEP REPLACED FUEL PUMP NOT GETTING POWER TO THE SPARK PLUGS DOESNT TURN OVER


It could be the distributor cap, that is, where the spark plugs are coming from.

Definitely do a test for spark at the plugs. Remove one of the plug wires from a plug and hold it near grounded metal. (If the plug end has a long insulated shroud, you may have to improvise to get ground close enough to the end of the wire.) Have someone crank the engine while you watch for spark. If you get an 1/8" or so of spark, that should be enough to fire.

If no spark, it can easily be the cap, look for damage to the cap. Check the distributor cap inside for signs of cracks or carbon arc tracks. Also, check to see that the little carbon contact for the center terminal is in place; without that you can have spark but it won't get to any plug wires!

Good luck!
EJ

Apr 10, 2010 | 1993 Jeep Grand Cherokee

1 Answer

Engine runs fine when started, put it in reverse and it starts to


probably neither. You should do a compression check, and check your transmission fluid for dicoloration and metal shavings.

Sep 17, 2009 | 2004 Jeep Grand Cherokee

1 Answer

2000 Jeep GCL 4.0L


Try changing spark plug wires and have the fuel pump checked out and check fuel filters and fuel line to see if that is your problem.

Sep 16, 2009 | 2004 Jeep Grand Cherokee

1 Answer

My 1995 4.0L YJ has a miss while idling and hesitation while driving. I have checked the fuel pressure, 50 PSI, however when I removed the vacuum line from the fuel pressure regulator it did not fluctuate...


If the fuel pressure does not change when you disconnect the vacuum hose on the regulator, change the regulator (There is vacuum at the hose, correct?) Also, check the return line for kinks and internal obstructions.

Aug 01, 2009 | 1995 Jeep Wrangler

1 Answer

Motor won't start


You need 3 things for a start condition 1 spark 2 fuel 3 compression. If you have lost spark and have changed wires and coil then you should look at the crankshaft position sensor. This sensor tells the computer when to fire the coil and which plug to fire. Hope this helps. I will check back on the 14th.

May 14, 2009 | 1990 Jeep Wrangler

1 Answer

2000 Kia misses


Change the fuel filter and pressure regulator, restart the computer.

May 06, 2009 | 1999 Kia Sephia

2 Answers

1994 nissan maxima


You may have a loose spark plug wire or your main spark plug rotor spinner might be bad its where all the plugs join together. Left side of maxima.

Bryon

Oct 17, 2008 | 1994 Nissan Maxima

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