StandsOnToes
NAXJA Forum User
- Location
- Canada alberta
Hi, everyone i'm new to these forums but i think i'm gonna be a long time poster here.
I just bought a 1989 cherokee inline 6 4.0 auto trans. , other than some mild rust on the lower panels it ran great when i looked at it and and ran great up untill 4 days after i bought it. I bought this jeep so i could improve it and make a decent 4x4 out of it but right now i'd love it if i could just drive to the grocery store with it.
So heres the problems i've discovered so far with it, and any help is greatly appericated:
1 i'll start with the first thing i noticed, when ever i turn the defrost/heat fan to blow on high i get a a pretty loud "buzz" from somwhere under-infront of the front passenger, it gives a pretty good vibration you can feel even in the centre console.
2. this is most likley related to the next problem, when idling the engine will tend to "chug", also it idles at a pretty low rpm around 100rpm . I've never owned a cherokee before this one and i don't know what a normal idle rpm is. but when it "chugs" the rpms get up to around 1000 and it does this back and forth every second or so.
3. and now why i'm on this forum before even going out and replacing plugs filters and such. i drove it to work today just cuase i wanted to drive my new toy, and it sat for about 6 hours. went to go for lunch and it didn;t start. it would crank but not start.
I looked around a bit on the net before getting here and i read that alot of jeeps around this year have problems with the CPS ( crank position sensor) and that this is the most likley cuase of them not starting but still being able to crank. If anyone could tell me a remedy to this ( i will replace it but first i gotta get it home) , also where exactly is it located and if anyone can direct me to a picture so i know what i'm trying to clean/tighten/jiggle.
Also i'm wondering if this could alse be the cuase of the engine "chugging".
Any and all answers welcome thanks in advance !
I just bought a 1989 cherokee inline 6 4.0 auto trans. , other than some mild rust on the lower panels it ran great when i looked at it and and ran great up untill 4 days after i bought it. I bought this jeep so i could improve it and make a decent 4x4 out of it but right now i'd love it if i could just drive to the grocery store with it.
So heres the problems i've discovered so far with it, and any help is greatly appericated:
1 i'll start with the first thing i noticed, when ever i turn the defrost/heat fan to blow on high i get a a pretty loud "buzz" from somwhere under-infront of the front passenger, it gives a pretty good vibration you can feel even in the centre console.
2. this is most likley related to the next problem, when idling the engine will tend to "chug", also it idles at a pretty low rpm around 100rpm . I've never owned a cherokee before this one and i don't know what a normal idle rpm is. but when it "chugs" the rpms get up to around 1000 and it does this back and forth every second or so.
3. and now why i'm on this forum before even going out and replacing plugs filters and such. i drove it to work today just cuase i wanted to drive my new toy, and it sat for about 6 hours. went to go for lunch and it didn;t start. it would crank but not start.
I looked around a bit on the net before getting here and i read that alot of jeeps around this year have problems with the CPS ( crank position sensor) and that this is the most likley cuase of them not starting but still being able to crank. If anyone could tell me a remedy to this ( i will replace it but first i gotta get it home) , also where exactly is it located and if anyone can direct me to a picture so i know what i'm trying to clean/tighten/jiggle.
Also i'm wondering if this could alse be the cuase of the engine "chugging".
Any and all answers welcome thanks in advance !
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