1985 Buick Regal Floods After Sitting

BUICK REGAL
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FUZZZOOOO
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  • 2 POSTS
Hello all:

I am new to this forum. I have an 1985 Buick Regal with a 3.0 litre motor in it, and it has about 170,000 kms on it.

What I can't figure out is that when the car has sat for more than 24 hrs and I try to start it, it is like it is flooded, and smokes and chokes like crazy for a couple of minutes, then runs fine. But initially to keep it running I have to keep my foot to the floor while it sputters and chokes.

Can anyone help me with this problem?

Best regards

Fuzzzoooo
Apr 12, 2006 at 4:14 AM
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LOSONE
  • ✓Experienced Mechanic
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I think that model has a feedback carburator system. It soulds like the choke is sticking. When the engine is cold remove the air cleaner and give the choke mechanical linkage a good cleaning with carburator cleaner. If the choke has a wire connected, it may be a defective heating unit. Let me know
Apr 12, 2006 at 4:46 AM
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FUZZZOOOO
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thanks for the feedback

but the motor is a multi-port fuel injection, and I never thought of a defective heating unit.

Thank you
Apr 12, 2006 at 5:55 AM
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LOSONE
  • ✓Experienced Mechanic
  • 1,616 POSTS
Most 85's are not fuel injected. It sounds like a fuel pressure regulator. It is the device on the fuel rail with a vacuum hose. Check the hose for leaks. It must have manifold vacuum to work. Let me know
Apr 12, 2006 at 9:05 AM

Suggested Repair

Check the fuel pressure regulator on the fuel rail and its vacuum hose for leaks, and confirm the hose has manifold vacuum.

Conversation Summary

The owner of a 1985 Buick Regal with a 3.0L engine and about 170,000 km reported that after sitting more than 24 hours it started as if flooded, smoked and choked for a couple of minutes, then ran normally if the throttle was held open. An expert first suspected a sticking choke or defective choke heater on a feedback carburetor. After the owner said the engine uses multi-port fuel injection, the expert recommended checking the fuel pressure regulator vacuum hose for leaks and confirming manifold vacuum.

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