1986 Olds Cutlass Cerra Fuel Pump

MICKALO

MEMBER
1986 OLDSMOBILE

I have an 86 Old Cutluss Cierra w/fuel injection, 4cyl. The problem is with the fuel pump.

When the ignition is first turned on, the fuel pump normally kicks in, pumping fuel. But now, after the car has been parked for a few hours, the fuel pump does not kick in and have to crank the engine for about 30secs or more before it will start.

If the car has been running, then shut it off for a short period of time, it starts right back up with no problem. It seem to be only when the car has been shut off for several hours when the problem occurs.

Is there some sort of a relay or pressure censor that maybe causing this problem?

I've tried tracing the wiring from the fuel tank harness to try and locate some sort of a relay or censor, without any luck.

Thx's
Mickalo

2 Replies

2CARPRO JACK

MECHANIC
11,533 POSTS

There should be a relay for the fuel pump. If you try the "repair manuals" link at the bottom of the main forum page, it will have a complete wiring diagram for your car

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Saturday, March 24th, 2007 AT 9:04 AM

MICKALO

MEMBER
3 POSTS

That's what I thought. Is there an online manual available without having to buy the entire manual? All the links I've found go to sites to purchase a manual :)

Or if anyone has a general idea where this relay might be?

Thanks for the info.

Thx's
Mickalo