2000 XJ VERY hard to start
So my XJ has been driving me crazy lately. It is being very difficult to start like I mean at least 5-6 attempts no matter if it's hot or cold, but once started, it sometimes runs fine and sometimes very rough and not on all cylinders.
I have replaced the cps, coil packs, cam position sensor, tps, all other sensors on throttle body, ECU, and coolant temp sensor. Nothing has seemed to do any good and I am completely stumped. Any ideas? |
Fuel pump starting to stick? Gas cap not sealed or hairline crack in fuel line/rail (wild guess, might cause fuel to siphon from lines back into tank?)?
These are far fetched, but it sounds like you've done most electrical checks. |
Originally Posted by jay_sco
(Post 3148883)
Fuel pump starting to stick? Gas cap not sealed or hairline crack in fuel line/rail (wild guess, might cause fuel to siphon from lines back into tank?)?
These are far fetched, but it sounds like you've done most electrical checks. |
check for leaking fuel injectors.
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Originally Posted by HS00XJ
(Post 3148938)
check for leaking fuel injectors.
And I know that I'm getting fuel to the rail because I've checked pressure and bleed down rate with a gauge so I'm confident it's not the pump |
Any. Heck engine light? Mine ran perfect til I had the battery disconnected for a couple days. Then it only had hard start and rough running sometimes. Eventually it started to do it all the time. Noticed my battery cables were loose at the clamps. Fixed that but still have the problem. Check engine light not coming on. Going to try cleaning the grounds that are bolted just under the coil next.
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Originally Posted by Waynerd
(Post 3149082)
Any. Heck engine light? Mine ran perfect til I had the battery disconnected for a couple days. Then it only had hard start and rough running sometimes. Eventually it started to do it all the time. Noticed my battery cables were loose at the clamps. Fixed that but still have the problem. Check engine light not coming on. Going to try cleaning the grounds that are bolted just under the coil next.
After researching leaking injectors I'm thinking that might be my problem, anyone know how to test which injector it is? |
You have to clear the error codes with a scanner. They don't just go away.
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2000 XJ no start please help!!!!!
I have no idea what can be causing this please help, it's kicking my butt.
Symptoms -Cranks but won't start (not cps) -Backfires out of TB and exhaust sometimes when trying to start but not always. -sometimes starts and runs very rough then stalls. -sometimes starts and runs fine. Parts replaced -ECU -coil packs -tps -cps -cam position sensor -coolant temp sensor -fuel injectors On the occasions that it does start or at least try to start it seems like it's misfiring or out of timing or something. I'm considering a valve issue? But when it starts it'll usually run fine so I don't know... I'm very frustrated and confused. Any help is appreciated. |
Did this start suddenly?
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Originally Posted by BlueRidgeMark
(Post 3150351)
Did this start suddenly?
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