Question about 1988 Oldsmobile Delta 88

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1988 DELTA 88 FUEL INJECTED BOGS WHEN TRY TO SPEED HIGHWAY

This car can acellerate from a dead stop to 60 mph with no problem. On the highway however if I try to merge into traffic at 60mph and acellerate it will stutter clunk clunk andI can't increase my speed. this is a 3.8 v6 fuel injected front wheel drive. It runs fine until highway.

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Change fuel filter and check fuel pump pressure. Pump may be going bad.

Posted on Jun 15, 2009

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1996 Delta 88 bucks/misses? while on highway at 60mph or so


High speed mis

If not ignition,I would suspect a vacuum leak

Have the intake smoked to check for leaks

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Fuel Filter and fuel pressure

Put a pressure gauge taped to the windshield
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Aug 22, 2009 | 1988 Oldsmobile Delta 88

1 Answer

Car runs fine but bogs down under a load on the highway.


On this fine problem, you're looking at many possibilities. Only sure way, is to test things. Are you getting a SES (Service Engine Soon) light? If you do, start there, run the code and see what it is. If not, possible things could be, your spark plugs are old and cannot burn the fuel, you pretty much have a misfire, fuel injector(s) are dirty. Many things really. My car had that problem, and turned out I had a bent intake valve, so like I said, could be many things.

Jun 04, 2009 | 1988 Oldsmobile Delta 88

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