I have a 95 jeep wrangler 4.0 it turns over has fuel and spark but wont start
If the fuel is getting to your cylinders and so is the spark, then one of two things are out of whack... either the timing is off, of the fuel/air mixture is wrong. Check your error codes using a code reader, available from almost any automotive parts store. But not all readers are the same. Some just read, while other are capable of resetting the error codes, which must be done once the error has been corrected. This code will direct you to the problem if it is a sensor issue, which governs the fuel/air mixture. If there is no error code then it has to be the timing...it might be a stretched belt, where it has jumped a tooth, IF it is a belt as opposed to a chain or gear drive... this is easily diagnosed with a timing light, hooked up and scoped to the correct specs. One to 5 degrees off of the optimum timing settings, should not prevent your vehicle from starting, but when you are WAY off your timing then you should consider that you will need to replace the timing belt. There is no other way for your timing to be that far out, The timing belt has become so worn that it will no longer keep the timing, even if you just reset the belt and everything else, it will just jump a tooth again,...it will be only a matter of time.
Dec 18, 2010 |
1995 Jeep Wrangler