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1988 Oldsmobile Ciera Repair Question


Topics covered: Fuel pressure, Fuel injector, Fuel pump.
Mileage: 65,432 miles.

Asked on September 14, 2012

Wont run at op temp

1988 cutless cierra 2.8 runs fine up to operating temp of 188 then falls flat on its face. will not restart till cooled down completly. I have changed just about everyelectrical part including fuel pump filter and reg. I have rang out entire engine harness no broken wires fuel pressure fine I dont know what to do next anyone got a clue?
Avatar Asked by paulc3110

Answer

Replied on September 14, 2012

Are there any trouble codes?

When it failed to restart, what is missing? Ignition sparks, fuel injectors not pulsing, fuel pump not working ?

Tiny Answered by KHLow2008 (expert)
40,318 answers provided
Replied on September 14, 2012

no codes have fuel pressure and spark. this is a good one. I do question the fuel volume though. but I cant figure out what stops the fuel pressure is good

Tiny Response from paulc3110
1 question asked
Replied on September 14, 2012

Are the injectors pulsing?
Does starting fluid works?

Tiny Answered by KHLow2008 (expert)
40,318 answers provided

Replied on September 14, 2012

yes starting fluid will keep it running when in this state. I will go recheck pulse @ injectors.

Tiny Response from paulc3110
1 question asked
Replied on September 14, 2012

leting it warm up, Its amazing how good it runs when cold like brand new. Will let you know bout pulse anly take a few with no thermistat in.

Tiny Response from paulc3110
1 question asked
Replied on September 14, 2012

If starting fluid works and you have fuel pressure, the fuel injectors are not pulsing.

It could be the PCM or cam sensor has a fault.

Tiny Answered by KHLow2008 (expert)
40,318 answers provided

Replied on September 14, 2012

nope got pulse and pressure just warmed it up now it is in the not run state. or should I say starts makes a few revolutions but rough ones almost like its way to fat.

Tiny Response from paulc3110
1 question asked
Replied on September 14, 2012

I thought this thing ony had a crank sensor.

Tiny Response from paulc3110
1 question asked
Replied on September 14, 2012

any ideas?

Tiny Response from paulc3110
1 question asked
Replied on September 14, 2012

hello, dont quit on me now.

Tiny Response from paulc3110
1 question asked