faulty fuel pump? ignition problems?

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faulty fuel pump? ignition problems?

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Chevrolet >> Chevy Trucks, Vans & SUV's >> Trailblazer >> faulty fuel pump? ignition problems?

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faulty fuel pump? ignition problems? - 11/14/2007 8:50:59 AM

jacee

Posts: 1
Joined: 11/14/2007
Status: offline

Hello,

I have a 2005 Trailblazer with 45k miles. I have noticed a whining sound coming from the fuel tank during startup over the last couple weeks and immediately suspected the fuel pump was going out. To add to the whining noise, over the last 2-3 days the car would not start on the first attempt but would start after a second try. Yesterday it would not start at all. It would crank over and all of the gauges were working but no start.

After several atempts to start the car, it would no longer crank or shift out of park. I suspected a possible relay problem in the fuse box under the hood and I replaced the starter relay. This allowed the car to crank and shift out of park once; however, when the tow arrived it would not crank or shift out of park. Tinkering with the same relay in hopes of it cranking/shifting was to no avail.

I checked of the battery connections which revealed all cables to be tight and secure.

I have a new fuel pump on the way but I am now wondering if I have a different problem, possibly with a relay or ingnition module.

If anybody has any ideas as to what might be causing these problems I would greatly appreciate your advice.

-JC