1998 Oldsmobile Bravada Problems AFTER fuel pump replacemen

CHUNKYCHOW

MEMBER
1998 OLDSMOBILE BRAVADA

Engine Performance problem
1998 Oldsmobile Bravada 6 cyl All Wheel Drive Automatic

Car died out of town - took to GM dealer did not know - fuel pump replaced. Was showing signs of fuel pump problems - could feel slight hesitation when driving for several weeks.
FYI - transmission replaced 3 years ago.
Other than that, very few problems with car over the years.

After picking up car from dealer (late Friday - closed on Sat.), It hesitated at stop signs and stop liights (as if it was not going to go). Also when I tried to back up, it did not want to but finally did. Is this just something that has to be worked out after replacing fuel pumps? Was not doing this before at all ! Should drive car 4 hours to get home? Thanks !

3 Replies

MHPAUTOS

MECHANIC
31,937 POSTS

Hi there,

Thank you for the donation,

Fuel pumps normally fail due to contaminated fuel causing a problem with the pump, normal practice is to flush the tank, replace any strainers and filters and fill with new fuel, was this done? I have seen new pumps fain in a few days due to this not being done, pump manufacturers will not warranty pumps unless this is done, and internal examination of pumps will show if this has or has not been done with the new pump installation.

Mark (mhpautos)

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Saturday, July 10th, 2010 AT 2:37 PM

CHUNKYCHOW

MEMBER
3 POSTS

After the fuel pump was "fixed", I started driving the car home & it stopped again - motor did not turn off but would not go when gas pedal pushed. Had towed 100 miles to dealer who has worked on car before - he has not seen it yet (weekend) - we think now that it may be transmission (got new one 3 years ago). Do you think it strange that fuel pump & transmission go out at same time? Could one have anything to do with the other? The tow guy said something about the fuel cap not being right & that the repair had been messed up & he showed me gas leaking out from under car. Would appreciate any comments.

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Sunday, July 11th, 2010 AT 7:21 PM

MHPAUTOS

MECHANIC
31,937 POSTS

Hi there,

From what you have said, I feel that the problem is with the new fuel pump installation, I would be thinking that the leaking is causing a drop in rail pressure, there is no connection between the trans and the fuel pump.

Mark (mhpautos)

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Sunday, July 11th, 2010 AT 7:52 PM