Having problems with your 1997 Jeep Grand Cherokee ?

Jeep will turn over but wont start

\015 It also has a 5.2 liter engine and quat-trac trans w/ aaaaaaair cond\015 Posted / edited by AnonymousUser on : 23-05-2022

Answers :

The first step is usually to read codes, but if you don't have a diagnostic tool then you could check the basics. first check fuel. turn on the ignition and listen carefully for a faint buzzing sound coming from the rear of the vehicle. the buzzing should be heard for two seconds and then stop. the sound will repeat every time you cycle the ignition.the best way to do that is with a helper while you listen for the sound coming from the gas tank. if the sound is heard, your pump is working. now go under the hood and look for what looks like an oversize bicycle valve on the fuel rail. take off the cap and while protecting your eyes press on the center pin just for a half second. if there is a release of pressure which shoots the fuel two inches or more away, then assume that the fuel system is adequate to start the engine. it is smart to put a rag around the valve while doing that so that the fuel does not go too far in all directions.
Take off a spark plug cable and put a screwdriver into the end of the cable. hold the shaft of the screwdriver about 1/4" from a good ground and have someone turn the engine over while you look for a spark from the screwdriver to ground. wear rubber gloves if you can; if you are not wearing gloves, do your best to not touch any other part of the vehicle while it is being turned over. The safest way to check for spark is to put another spark plug into the cable and rest it on some metal surface and see if it has spark while turning over the engine. If it has no spark then things could get a little more complicated. you have a relay in your car called a ASD relay which is controlled by your computer and which supplies 12v to your coil and injectors. whether your computer is allowing your jeep to start is a job for a DRB or other suitable diagnostic tool. good luck.
Fuel filter,fuel pump.
Repair Help & Product Troubleshooting for 1997 Jeep Grand Cherokee

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