dies in reverse
10-05-2014, 03:31 PM
#1
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Model: Cherokee
dies in reverse
Got a 03 grand Cherokee 4.0 runs good idles about 800 rpm, no problems going forward just when I put in reverse, it will idle in reverse but soon as I hit the gas it dies around 1300 rpm any ideas
10-05-2014, 08:11 PM
#2
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Model: Cherokee
Just checked for codes the only one stored is 11 crank sensor but the engine light is not on. the previous owner Said he had replaced it already when I got it couple months ago but didn't have this issue could this b the issue
10-05-2014, 08:42 PM
#3
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yes but i remember when i my crank senor was going bad it wouldnt start at all... so i cant say for sure, manual or automatic transmission?
10-08-2014, 11:20 AM
#6
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Year: 1993 & 1994
Model: Grand Cherokee
Engine: 4.0
Was it a Mopar sensor or just a parts store sensor. The ones from the parts store are real hit and miss from what I've read on the forums when it comes to the CPS.
Max
Max
10-08-2014, 08:22 PM
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Model: Cherokee
Think it was a part store crank sensor went ahead and replace it with one from.Napa thoughti had it fixed drove fine yesterday hoped in it this mourning put in reverse then died .wasn't brave enough to drive to work so don't no if the bucking prob is fixed or not
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03-20-2023, 02:32 PM
#8
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Year: 1995
Model: Grand Cherokee (ZJ)
Engine: 4.0
I had the same problem and finally discovered it was the connection between the crank position sensor and the wiring harness on the distributor side. It's buried a little bit behind the valve cover and has given me trouble before. This time putting in reverse just happened to move the engine enough to cause it to disconnect. Opened it apart cleaned the three prongs very carefully with a Q-tip, ran a small drill bit down the female side of the plug receiver to clean those out snap it back together real good problem solved. I also went ahead and double zip tied it to nearby wiring to minimize any shaking. I can't tell you how many times the wiring shake test has led to discovering the problem. The first time this happened I got stuck in death Valley, that was not cool.
03-20-2023, 02:39 PM
#9
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Year: 1998
Model: Cherokee(XJ)
Engine: 4.0L
I had the same problem and finally discovered it was the connection between the crank position sensor and the wiring harness on the distributor side. It's buried a little bit behind the valve cover and has given me trouble before. This time putting in reverse just happened to move the engine enough to cause it to disconnect. Opened it apart cleaned the three prongs very carefully with a Q-tip, ran a small drill bit down the female side of the plug receiver to clean those out snap it back together real good problem solved. I also went ahead and double zip tied it to nearby wiring to minimize any shaking. I can't tell you how many times the wiring shake test has led to discovering the problem. The first time this happened I got stuck in death Valley, that was not cool.
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