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Amedee
Amedee, Oldsmobile Technician
Category: Oldsmobile
Satisfied Customers: 26453
Experience:  ASE certified Technician advanced level specialist. Wisconsin certified emissions state inspector
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1998 olds 3.8 start car stall out hold foot on gas un tell

Customer Question

1998 olds 3.8 start car stall out hold foot on gas un tell warm up run fine but when rev up to the 4000cut in and out but dose not stall replaced tps Maf iact upper and lower intake gasket wires plugs car has 88k on it
Submitted: 1 year ago.
Category: Oldsmobile
Expert:  Amedee replied 1 year ago.

Hello and welcome!

My name is ***** ***** I can assist you with your question.

Expert:  Amedee replied 1 year ago.

If at any point during this conversation you would like to speak on the phone, feel free to request a phone call on your end and I will call you right away. Or simply let me know and I can get the process going.

Expert:  Amedee replied 1 year ago.

Is the check engine light on? Are there any codes in the computer?

Customer: replied 1 year ago.
No
Customer: replied 1 year ago.
Change temp sensor t,o
Expert:  Amedee replied 1 year ago.

Have you checked the fuel pressure?

Customer: replied 1 year ago.
Do not have huge to come it
Customer: replied 1 year ago.
Ck at fuel real it got pressuer
Expert:  Amedee replied 1 year ago.

How much?

Customer: replied 1 year ago.
I do not have a fuel pressuer gage
Expert:  Amedee replied 1 year ago.

Ok, the reason I ask is because you could have low fuel pressure due to a weak fuel pump. This is very common.

Another possible cause would be a leaky fuel pressure regulator.

Expert:  Amedee replied 1 year ago.

Have you checked the fuel pressure regulator?

Customer: replied 1 year ago.
I could the reg it look ok no gas up there but how come when the car warm up it runs fine
Expert:  Amedee replied 1 year ago.

It could be a lack of fuel. The engine needs more fuel when cold therefore runs better as the engine warms up.

Customer: replied 1 year ago.
Ok I'll come it and get back
Expert:  Amedee replied 1 year ago.

Sounds good!

Customer: replied 1 year ago.
Ill ck it and get back to you
Expert:  Amedee replied 1 year ago.

ok

Customer: replied 12 months ago.
Replaced fuel pump car still running the same
Expert:  Amedee replied 12 months ago.

I think we should speak over the phone

Customer: replied 12 months ago.
I can't talk over the phone do not have money on card
Customer: replied 12 months ago.
I start the car it. Stalls or go up and down I replace every thing I can think of it runs get when it runs
Expert:  Amedee replied 12 months ago.

Ok so did you ever check the fuel pressure?

Customer: replied 12 months ago.
Puta new fuel pump in
Customer: replied 12 months ago.
When rev it up to 4K rpm it cut in and out
Customer: replied 12 months ago.
It rev up and down like bad I act put new one in the same thing happen
Expert:  Amedee replied 12 months ago.

Hello! It looks like your payment did not go through.

Customer: replied 12 months ago.
Ok
Expert:  Amedee replied 12 months ago.

If your fuel pressure checks out good, then I would suspect a bad mass air flow sensor/MAP sensor. Another possible cause would be a plugged exhaust or even something with the promary ignition system. For example, crank sensor, harmonic balancer or ignition module.

Customer: replied 12 months ago.
I was think the same thing I can drive car it has power
Expert:  Amedee replied 12 months ago.

Right, it has power up to that 4 k rpm right? Are you sure it is not a rev limiter?

Customer: replied 12 months ago.
I may be when I driver it dose not happen
Expert:  Amedee replied 12 months ago.

That might just be what is going on. :)

Expert:  Amedee replied 12 months ago.

I am glad I can help!

It has been a pleasure working with you. Please dont forget to honor your good faith deposit by rating my answer as "5 STAR SERVICE" for assisting you today.

Please let me know if you have any further questions.

Customer: replied 12 months ago.
If it was igntion would it back firer
Expert:  Amedee replied 12 months ago.

It could.. yes depending on how it goes bad.

Customer: replied 11 months ago.
It was the t body a month ago i said it was it was it could not get to the junk yard to get the part i am piss about that i work on cars for 35 years my self put fuel pump in that did not need