Hello I have a 1991 Jeep choerokee lorado with the inline 6. I went out and started it to warm up yesterday and came out 10-15 min later and it was shut off... and now i can not get it to start... It does have spark and I think its getting fule but i shot some starting fluid in it to check and still no fire, pop, or anything. got a new crank sensor and still nada, pulled it up on to top dead center of #1 and made sure the rotor was on #1 to check to see if cam chain jumped and its matching up still has about 100 lbs of compresson.
NOW WHAT? IM LOST?
Chris
motoxno53@yahoo.com
2006-10-04 06:45:31 · 4 answers · asked by motoxno53 1 in Cars & Transportation ➔ Maintenance & Repairs
It still cranks fine. and even if the fule pump is not working it should of started off of the eather right? I checked the fusees and relays they are all good
2006-10-04 07:08:59 · update #1
You have done a relatively decent job or trying to eliminate the obvious, now let's try to do a bit of diagnostics.
Try This------>
With a note lad and pencil, sit in the driver's seat and insert the key. Turn the key to "Run" position, but do not start. Then turn it off. Then turn it back on. Then turn it off. Now turn it on, and leave it there. Watch the "Check Engine" light. Don't space off here. Pay close attention. It will begin to flash engine codes to you.
Go here-------->
http://autorepair.about.com/library/ts/obd-i/bl-dtcs-05a.htm
...and scroll down below the descriptions for the details if this is not clear enough,
The flashes will be separated by short and long pauses. Example, "flash, flash, pause, flash, flash, flash, flash, longer pause" will denote a code "24".
The first code will probably be a "12" and when you get a code "55", all of the codes have been retrieved.
If you get distracted, or if you are not sure that you got everything, turn the key off for 30 seconds, and start all over again.
Do not disconnect the battery, or all of the codes will be cleared, and you will not have any information to work with.
After you have the codes, go back to the link above and check the code description listed for the Jeep.
NOTE:---->The codes identify a failure in a circuit or system monitored by the car's computer (PCM) and do NOT NECESSARILY denote a failure of a specific component.
Diagnose the circuit and perform the repairs following the proper procedure relating to that code. Follow the "trouble-tree" outlined in the repair manual.
You can purchase on at the parts house, book store or on-line for < $20.00. Or you can gather the same information at the local library at no cost.
Or for an annual subscription you can gather all the repair information, diagnostics, specifications and nearly everything publicly available in published format here------->
http://www.eautorepair.net/
Good Luck
2006-10-04 09:12:55 · answer #1 · answered by Ironhand 6 · 0⤊ 0⤋
Check the relays in the fuse assembly inside the engine compartment. You can first try and remove them from the sockets and inspect the terminals. If they're dirty or corroded shine them up before plugging them back in. If it still won't crank, replace them with new relays.
I've seen them go bad with age and the symptoms sound the same. One is your EEC (engine electronic controls) and the other is for your fuel pump. I would just replace them all at the same time since they're the same age.
2006-10-04 13:55:28 · answer #2 · answered by J.D. 6 · 0⤊ 0⤋
MINE will!!
The only things an engine needs to run is air, fuel, and spark. If you have spark, fuel is all that is left, since air is rather difficult to keep out.
Check your fuel pump, filter, and your injectors. If carbeurated, check your choke setting. Hope this helps.
2006-10-04 13:53:35 · answer #3 · answered by Lonnie P 7 · 0⤊ 0⤋
could also be the throttle position sensor
2006-10-04 13:57:34 · answer #4 · answered by doogie494 2 · 0⤊ 0⤋