Buick Century:

1989 Buick Century Limited 3.3 Engine

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# 1  8/1/2011 11:02 PM

Riley McCoy
New member
Registered: 8/1/2011
Posts: 1

1989 Buick Century Limited 3.3 Engine

Early morning drove across town about 12 miles and stopped at a red light. Motor died, started after grinding over a few times but was stumbling and looping. Turned the corner onto a side street to get out of the traffic and the motor died again. Would not re-fire and ran the battery down. Removed the batter and carried it to the station to get it re-charged. Put back in the car and still would not start so towed it home.

No trouble codes on the check engine dash light as we had removed the battery.  Are the codes still in  the E.C.M. and can they be read with an OBD-1 scanner?

Also, we unhooked the air filter and sprayed ether starter fluid into the intake and the motor started and purred like a kitten while we were squirting the fluid in it.

Any suggestions or help would be greatly appreciated as this car only has 62,000 miles on it.



# 2  8/2/2011 4:08 AM

Registered: 11/24/2009
Posts: 1301

Re: 1989 Buick Century Limited 3.3 Engine

When you disconnected the battery you erased all of the trouble codes that may have been stored.

If you can start the engine with starting fluid then it is obviously a fuel problem. It could be a bad clogged fuel filter, a possible bad fuel pump, a faulty fuel pump relay and worse case a bad PCM (Power Control Module).

Check the fuel pressure when the key is turned on and the engine is off, the fuel pump should turn on for about 2 seconds and the fuel pressure should be about 30 to 50 PSI. If you turn the key on and no fuel pressure appears then you should suspect the related parts in the fuel system circuit listed above.

If you turn the key on do you hear the fuel pump in the fuel tank run for about 2 seconds?

Check to see if you have current at the fuel pump connector at the fuel tank, if you have the two second prime signal (voltage) and the pump does not engage then the fuel pump may be faulty.

If you don't have the tools or the skills then your local automotive professional would be able to check the vehicle out for you.

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