really could use some help!!!
12-08-2009, 05:36 PM
#1
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Year: 1987
Model: Cherokee
Engine: 4.0L
really could use some help!!!
hey everyone i finally got a chance to work on my jeep(87 xj 4.0L )
last time i posted i was told to check the fuel ballast resistor. i could not locate it . i m pretty sure it is suppose to be on the diver side fender. well i do not have one. very weird and sucks everyone told me that it was a big chance it would be that part causing my problems .
any way i went on to check the fuel pressure and everything is good.
some things i noticed is the idle is very jumpy when i start it. what i mean is it doesn't idle at the same rpm it jumps up a little over 1000 and jumps down to 500 and even some times lower then that maybe 250 !!
i don't know what to check anymore it still does the same thing. i start it up runs fine and once it warms it the idle starts to act up and then it dies and usually wont start sometimes it will but the same thing happens .
could it be a map senor or the iac senor or maybe even a tps senor ?
i know i have good compression and get fuel and have good fuel pressure .
maybe it could be something to do with the ignition module ?
i bench tested the coil and few weeks ago and it failed swapped a new one in.
tested the cps and put a new one in .
any help would be great guys
thank you
mike
last time i posted i was told to check the fuel ballast resistor. i could not locate it . i m pretty sure it is suppose to be on the diver side fender. well i do not have one. very weird and sucks everyone told me that it was a big chance it would be that part causing my problems .
any way i went on to check the fuel pressure and everything is good.
some things i noticed is the idle is very jumpy when i start it. what i mean is it doesn't idle at the same rpm it jumps up a little over 1000 and jumps down to 500 and even some times lower then that maybe 250 !!
i don't know what to check anymore it still does the same thing. i start it up runs fine and once it warms it the idle starts to act up and then it dies and usually wont start sometimes it will but the same thing happens .
could it be a map senor or the iac senor or maybe even a tps senor ?
i know i have good compression and get fuel and have good fuel pressure .
maybe it could be something to do with the ignition module ?
i bench tested the coil and few weeks ago and it failed swapped a new one in.
tested the cps and put a new one in .
any help would be great guys
thank you
mike
12-13-2009, 08:58 PM
#5
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Year: 1987
Model: Cherokee
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alright sounds good i plan to check that tomorrow any idea how much they go for ?
and would they act up once the motor warms up ?
thanks mike
and would they act up once the motor warms up ?
thanks mike
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12-13-2009, 09:40 PM
#8
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Year: 1987
Model: Cherokee
Engine: 4.0L
every time my jeep warms up it starts to act up the idle then it goes really low like it is losing power or spark and it stalls
could this be the iac ?
could this be the iac ?
12-13-2009, 10:05 PM
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Year: 1987
Model: Cherokee
Engine: 4.0L
alright they r both cheap to get so i plan just to replace them and fire her up and see what happens hopfuly with will work lol but thank you guys for the help
mike
mike