89 Cherokee - falls dead

GBGTEXAS

MEMBER
1989 JEEP CHEROKEE

1989 Jeep Cherokee 2WD 4.0 liter 180,000 miles
Jeep seems to drive fine but will die upon decelaration after high speeds. If I'm going down the highway, runs great. Take an exit and decelerate to stop. Upon stopping, I find the engine is dead. Restarts immediately and runs fine. No check engine light is on. EGR valve sticking, crnk sensor? Any ideas.

4 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Low should be atleast 28-40lbs High 125-160lbs

Put some freon 134a and see what happens

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Friday, April 20th, 2007 AT 1:30 AM

MERLIN2021

MECHANIC
17,250 POSTS

With 180,000 I would check the fuel pressure.

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Wednesday, July 11th, 2007 AT 7:32 AM

GBGTEXAS

MEMBER
46 POSTS

Cranking - 39psi
Idle - 31psi
When I actually drove it with the fuel pressure gauge on the vehicle, I only could make it die out once. When that happened the fuel pressure certainly did not fall substanially. Maybe to 28-29psi at most. Is that enough to make it die? I will try this process some more.

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Wednesday, July 11th, 2007 AT 3:54 PM

GBGTEXAS

MEMBER
46 POSTS

Cranking - 39psi
Idle - 31psi
When I actually drove it with the fuel pressure gauge on the vehicle, I only could make it die out once. When that happened the fuel pressure certainly did not fall substanially. Maybe to 28-29psi at most. Is that enough to make it die? I will try this process some more.[/Quote:789456e861]

turned out it was the EGR valve. It was sticking open causing the truck to falldead upon deceleration.

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Saturday, July 14th, 2007 AT 10:16 PM