christophercon Posted April 14, 2005 Report Share Posted April 14, 2005 1994 STS NORTHSTAR. Checked for codes, but have none. Fuel pump may have sounded loud - and resonating last week. Car used to start as soon as the starter kicked but now you have to crank it for 3-5 seconds straight. Car runs good after it is started. Can this be the fuel pump that I thought was loud last week. ANYBODY have any suggestions or ideas? THANKS, CHRIS Link to comment Share on other sites More sharing options...
KHE Posted April 14, 2005 Report Share Posted April 14, 2005 Check the fuel pressure regulator - remove the top cover, turn the key to ON but DO NOT start the engine. If there is gasoline at the fuel pressure nipple, the FPR is bad and needs to be replaced. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
stsjoe Posted April 14, 2005 Report Share Posted April 14, 2005 hard to start hot cold or all the time? Joe Link to comment Share on other sites More sharing options...
Cadillac STS Posted April 15, 2005 Report Share Posted April 15, 2005 Check the fuel pressure regulator - remove the top cover, turn the key to ON but DO NOT start the engine. If there is gasoline at the fuel pressure nipple, the FPR is bad and needs to be replaced. how much does a FPR cost and is it something that anyone can replace? Link to comment Share on other sites More sharing options...
Ranger Posted April 15, 2005 Report Share Posted April 15, 2005 I think I have heard some one say $60 - $80. Very easy to replace. Just remember to bleed off fuel pressure first. Link to comment Share on other sites More sharing options...
Scotty Posted April 15, 2005 Report Share Posted April 15, 2005 I just checked www.rockauto.com for a 98 STS and its $39 for the nylon fuel rail and $41 for the stainless fuel rail (both AC DELCO). I think the nylon fuel rails were recalled but I may be mistaken, they were on my 96.... I think the FPR pops out after removing a snap ring retainer, Mike Link to comment Share on other sites More sharing options...
Ranger Posted April 15, 2005 Report Share Posted April 15, 2005 WOW, $41 for a SS fuel rail. Much less than I would have expected. How about the FPR? Link to comment Share on other sites More sharing options...
navion Posted April 15, 2005 Report Share Posted April 15, 2005 Ranger, I may be mistaken, but I believe that Scotty ment $41 for the regulator that fits into a stainless fuel rail, not the fuel rail it's self. Britt Britt Link to comment Share on other sites More sharing options...
Ranger Posted April 15, 2005 Report Share Posted April 15, 2005 Ah, that would explain why it sounded so cheap. I think I once heard $250 for the SS fuel rail. Sound right? Link to comment Share on other sites More sharing options...
Cadillac STS Posted April 15, 2005 Report Share Posted April 15, 2005 I think I have heard some one say $60 - $80. Very easy to replace. Just remember to bleed off fuel pressure first. How would I bleed of the fuel pressure? Link to comment Share on other sites More sharing options...
KHE Posted April 15, 2005 Report Share Posted April 15, 2005 There is a schrader valve on the fuel rail - remove the cap and depress the stem. Make sure the engine is cool and you have a rag handy to blot up the gas. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
Scotty Posted April 15, 2005 Report Share Posted April 15, 2005 Ranger, I may be mistaken, but I believe that Scotty ment $41 for the regulator that fits into a stainless fuel rail, not the fuel rail it's self. Britt Yes, britt, I did mean the FPR, sorry, when I re-read my post I can see that it was ambiguous, Thanks Link to comment Share on other sites More sharing options...
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