Driving wife's Grand Cherokee last Friday night on the interstate around 70mph. It gave a little lurch (had been running fine, always maintained, never leaked anything, never run hot) and just quit. Tach was freaking out. Timing chain and gears are intact and in good shape. Timing seems to be good. Cam and crank not broken. Low compression in first 4 cyl, but has been running like a champ up until last week. It has 105k miles. Any ideas that I might have missed?
Anybody ever have a 4.7 Jeep v8 die a sudden death?
- Thread starter 59Willys
- Start date
Tom@Hilltop_Machine
Well-Known Member
- Joined
- Mar 31, 2005
- Location
- Rural Retreat, VA
Maybe the TPS went bad.
rockmafia
Well-Known Member
- Joined
- Apr 2, 2006
- Location
- sedalia nc
Cam or crank pos sensor
You can check for codes by turning the key on/off 3 times without starting it, or get autozone to scan it.
info here
http://www.wjjeeps.com/faultcodes.htm
You can check for codes by turning the key on/off 3 times without starting it, or get autozone to scan it.
info here
http://www.wjjeeps.com/faultcodes.htm
72Rockcruiser
LETS GO BRANDON!
- Joined
- Mar 22, 2005
- Location
- Charlotte, NC
Anybody ever have a 4.7 Jeep v8 die a sudden death?
Yes. No more Jeeps for me.
Yes. No more Jeeps for me.
jackedHB
Member
- Joined
- Apr 3, 2005
- Location
- Boiling Springs
Its a Chrysler thing I believe. The 4.7, 3.7 and 2.7 all junk, coming from somebody with a 3.7 liberty, I keep waiting for it to puke on me one day.
- Joined
- Mar 24, 2005
- Location
- Stanley, NC
What year is it, and does it have the multi-displacment system?
Estonian
Member
- Joined
- Oct 25, 2008
- Location
- Raleigh/Garner
the same Exact thing happend today at my work on a 2000 4.7 GC, lost compression in 1-6 cylinders, only running on 2 cylinders. at first i thought it was the ignition coils so i threw some in there that i had laying around but didnt help, so i did a compression check on it and thats when i found out that it had lost it all... still dont know what happend to it, i pushed it in the yard and grabbed another car to work on.
its at wife's family's garage now. They are going to take it apart and see what broke...maybe something in the valves? dunno...will post what happened maybe that will help someone else in the future. did find a used motor at marsh's in siler city, might end up just having to swap it out. hope not.
Was the crank sensor and the cam sensor. Compression seems to be fine - maybe was just superflooded with gas earlier (?) Anyway - hope this will help someone else...try those sensors and you should be back on the road for less than a hundred bucks.