Question about 1998 Buick Century
97 buick regal GS supercharged 3800
the car will start then dies out slowly. i put a pressure guage on fuel rail, pressures up when the key is turned on, 50 psi, but when the engine starts the pressure drops off untill it dies. It has a new fuel pump. the filter is new the pump relay is new. has 2 codes MAF sensor and #6 cyl missfire. I put a meter on the pump and it loses power after the engine starts Help!!!
On the regals they have a ceramic resistor on the passanger side under the fender. It heats up and over time it tends to brake and the wire inside tends to rust away. The fuel pumps run in 2 different speeds. Had the same problem. Dealer only part yet the car would run and you would think it was the fuel pump. Turn the key it kicks on then start and dies out. Ceramic on the pass side would need replaced. It is white about 2-3 inches long or so held on with 2 bolts i do believe. Ill find a bulliten i found online to help me diagnos the problem. :) hopefully this helps someone out instead of spendin $$$ that ya cant afford with the recession eh?
Posted on Apr 01, 2009
When you start the car the computer primes the fuel system by turning on the fuel pump relay for 5 seconds. . After that the computer monitors oil pressure. I know you likely already checked this, but check the oil. If the oil pressure is low the computer will shut off the fuel pump. If the oil level is fine, you might have a bad oil pressure sending unit.
Posted on Mar 07, 2009
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Posted on Jan 02, 2017
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