1993 Oldsmobile Bravada-Fuel Pump problem


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1993 Oldsmobile Bravada-Fuel Pump problem

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Phishr
Novice

Apr 9, 2009, 7:43 PM

Post #1 of 3 (3750 views)

1993 Oldsmobile Bravada-Fuel Pump problem	Sign In

I have a 1993 Oldsmobile Bravada with almost 199,000 miles. It has the 4.3L V6 engine. The problem is that I have had to replace the fuel pump twice within the last month. The car was running fine...then it started stalling occasionally so I took it in and it was determined that I had low fuel pressure...so I had the pump replaced. A little over a month later it stalled on me again and it was determined that once again I had low fuel pressure so the pump was replaced again. Sorry, I don't have the fuel pressure readings. The shop told me that it was probably a bad pump. But after this 2nd pump was installed the car stalled on me while I was on the freeway but only for a few seconds and then started running again...the same problem that I had before. I am clueless as to what is going on here. Is this a common problem with these old Oldsmobiles?

Double J
Veteran / Moderator
Double J profile image

Apr 9, 2009, 8:29 PM

Post #2 of 3 (3746 views)

Re: 1993 Oldsmobile Bravada-Fuel Pump problem	Sign In

Did they check and replace the Fuel Pump Pulsator when the Fuel Pump was replaced?

These were common failures.
Fuel Pumps end up being replaced because this is overlooked.

The fuel delivery system may have low or no pressure due to a ruptured fuel pump pulsator. The pulsator is the flexible connector between the fuel pump and the metal fuel line in the tank. This rupture appears as a tear in the pulsator openings and is the result of exposure to gasoline containing a high percentage of ethanol.

They look like this.....

Phishr
Novice

Apr 11, 2009, 2:41 PM

Post #3 of 3 (3737 views)

Re: 1993 Oldsmobile Bravada-Fuel Pump problem	Sign In

I looked at the old fuel pump assy I got back from the mechanic and it doesn't have a fuel pump pulsator. All there is is a piece of rubber hose connecting the pump to the metal fuel line. Would that be causing some kind of problem?

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