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Starting Problem Plz Help

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Old 10-11-2009, 03:01 AM
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Default Starting Problem Plz Help

My 89 cherokee is my daily driver as well as my toy. but recently it has developed an inconsistent starting problem. sometimes after long and short periods of time it will just crank over n over then finally it will start, but most of the time it fires up like a champ. i have replaced the fuel pump, filter, put a water absorber in the tank (HEET), and seafoamed the engine to try an fix this problem. everything i can spot is in working order. plz any suggestions welcome. i just dont want to keep throwing money around and not fixing the problem.

thanks for the help
Old 10-11-2009, 03:27 AM
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check out the cps yet??
Old 10-11-2009, 03:00 PM
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what is CPS?
Old 10-11-2009, 03:03 PM
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CPS is crankshaft posistion sensor.

my guess is the NSS: neutral safety switch.

GL
Old 10-11-2009, 03:09 PM
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i dunno if thats it, cuz it will just keep crankin then i wait then i crank it again and after a few times it starts.
Old 10-11-2009, 03:16 PM
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So whats the problem then
Old 10-11-2009, 03:20 PM
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I think his point was if it were the NSS it wouldnt crank at all, Really no need to be a smart ***
Old 10-11-2009, 03:24 PM
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Originally Posted by jeep.kevin
i dunno if thats it, cuz it will just keep crankin then i wait then i crank it again and after a few times it starts.
get a haynes boy!!!! but your CPS looks like this....
http://www.the-ecu-doctor.co.uk/Jeep%20Cherokee.jpg

sorry couldnt upload any pics of it but i googled a pic instead. its infront of your jeep right next to your radiator. easy access ;]]
Old 10-11-2009, 04:26 PM
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Originally Posted by Quazzimoto
I think his point was if it were the NSS it wouldnt crank at all, Really no need to be a smart ***

shut your mouth when you are talking to me
Old 10-11-2009, 04:32 PM
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Originally Posted by RenoXJ

shut your mouth when you are talking to me
My mouth wasnt open when I typed that! haha
Old 10-11-2009, 04:38 PM
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Originally Posted by RenoXJ
So whats the problem then
this.

If it still starts then whats the problem.. All of our jeeps have little quirky electrical bugs. as long as it runs then its fine with me
Old 10-11-2009, 04:43 PM
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OOOOOOOOOOO I thought you were bein a prik and ment it in another way my bad for the misunderstanding. I agree tho, find me a jeep thats been ridden hard that is perfect... you cant lol My bad again reno
Old 10-11-2009, 04:45 PM
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It's all good man no hard feelins
Old 10-11-2009, 04:48 PM
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Kevin. I would take a look at the crank position sensor first. If thats not it your intake mani may need a good cleanin. I recently took out all the vacuum fittings and lines and cleaned all the gunk out it idles much smoother. Couldnt hurt.
Old 10-11-2009, 04:51 PM
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Originally Posted by myHEEPis.rad
get a haynes boy!!!! but your CPS looks like this....
http://www.the-ecu-doctor.co.uk/Jeep%20Cherokee.jpg

sorry couldnt upload any pics of it but i googled a pic instead. its infront of your jeep right next to your radiator. easy access ;]]


the picture is great but where is that located? my real problem is the fact that it just cranks for days sometimes, then other times it fires up like its brand new?


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