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Question

Question Details

Asked: Jul 03, 2009 - 02:34 PM

Status: Closed

97awdspyder

Power problems on a GMC Jimmy.

I have a 2000 Jimmy that runs great at regular driving but if you floor it it leans out. Fuel pressure is 55psi and doesn't drop when I drive it. I changed the spyder thinking it was the problem and its doing the same thing. Any ideas? Ii don't think its the fuel pump because I have good fuel pressure. Any ideas?

In Makes & Models > GMC > Jimmy
In Maintenance & Repair > Engine
In Maintenance & Repair > Fuel System
1 answer - 145 days ago

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Answers

karjunkie

Date: Jul 03, 2009
Time: 05:50 PM

Edit Answer (for another -38 minute)

Check or better yet replace the fuel filter if its been over 2 years since it was replaced. Also, check the fuel pressure regulator. Pull the vacuum hose after its been running a bit and see if it has fuel in it. If so, you need a new FPR.

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