woody Posted November 2, 2007 Report Share Posted November 2, 2007 Hello All, Just recently my car cranks for a few seconds longer than normal before it actualy starts. I have no idea why. Not sure if it may be bad gas, etc. Is there anything I can check? It is a problem also as I have a remote start and it will not start the car. Can I use any octane boost or should I run this tank out. OPen for any suggestions. Thanks Woody Link to comment Share on other sites More sharing options...
BodybyFisher Posted November 2, 2007 Report Share Posted November 2, 2007 Have your battery load tested clean your battery connections good check your fuel pressure regulator how old are your plugs? Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
woody Posted November 2, 2007 Author Report Share Posted November 2, 2007 Plugs were changed at 102,00 and now I have 120,00 On the fuel pressure regulator how would I check it........... Sorry Link to comment Share on other sites More sharing options...
stsjoe Posted November 2, 2007 Report Share Posted November 2, 2007 If it starts fine cold, but cranks longer when hot replace the FPR. Takes all of 15 minutes Link to comment Share on other sites More sharing options...
woody Posted November 2, 2007 Author Report Share Posted November 2, 2007 It is the oppisite. It starts hot noproblem Link to comment Share on other sites More sharing options...
Ranger Posted November 2, 2007 Report Share Posted November 2, 2007 Forget the snake oil. Have someone turn the key on (don't crank) while you hold your ear to the open filler pipe. Do you hear the fuel pump run for 2-3 seconds? If not, check the fuel pump relay. Link to comment Share on other sites More sharing options...
95SevilleSLS Posted November 2, 2007 Report Share Posted November 2, 2007 Have the wires been replaced ever? Have you noticed a drop in fuel economy or power? What kind of oil do you have in it? When was the last time the fuel filter or air filter had been changed? -Dusty- - 02 Seville STS, white diamond - 93 Sixty Special, Tan with vinyl top - 79 Coupe DeVille, Tan with Tan top - 06 GMC Sierra Z71, Black - 92 Silverado C1500, black and grey - 83 Chevy K10 Silverado, Black and Grey Link to comment Share on other sites More sharing options...
woody Posted November 3, 2007 Author Report Share Posted November 3, 2007 All, I will check the battery connections and fuel filter. The wires and plugs all got changed at the same time. I use 10W30 Mobil One Synthetic. It could probably use a fuel filter. The air filter I just replaced. The milage on the highway at a crusing speed of around 80mph I got going up North Michigan registered 24MPH and city I get around 19.8mph. Ranger, I can hear the pump for the fuel. I will repost after checking Woody Link to comment Share on other sites More sharing options...
Ranger Posted November 3, 2007 Report Share Posted November 3, 2007 Fuel & air filter will have no affect on starting, nor will the oil. Since you can hear the pump, we know it is running. Next step would be to check the FPR for a leak and then check the fuel pressure itself. Link to comment Share on other sites More sharing options...
woody Posted November 6, 2007 Author Report Share Posted November 6, 2007 Now I need to know how to do both. Is there a post I can read? picture is worth a thousand words,I have no idea where the FPR is Link to comment Share on other sites More sharing options...
Ranger Posted November 6, 2007 Report Share Posted November 6, 2007 The FPR is a small canister on the fuel rail. There is a vacuum hose on the top. Pull the vacuum hose with the engine at idle and look for fuel leaking at the nipple. There should be none. To check fuel pressure, put a fuel pressure gauge on the service port. That is a schreader valve (just like a tire valve) on the fuel rail. At key on or idle, pressure should be about 45 psi. Link to comment Share on other sites More sharing options...
woody Posted November 6, 2007 Author Report Share Posted November 6, 2007 Ranger, Thanks I will try to check the FPR tonight, the pressue I will need to procure a gage. If the FPR is leaking what can I expect the cost to be for a new one? and is it easy to replace? Woody Link to comment Share on other sites More sharing options...
apache13 Posted November 6, 2007 Report Share Posted November 6, 2007 Have the wires been replaced ever? Have you noticed a drop in fuel economy or power? What kind of oil do you have in it? When was the last time the fuel filter or air filter had been changed? This is probably a stupid question but I'm asking- what oil weight around freezing temperatures would cause the additional 2-3 second cranking? This last week we've had some 25-30 degree mornings and she's been hesitant on cranking.......... Link to comment Share on other sites More sharing options...
Ranger Posted November 6, 2007 Report Share Posted November 6, 2007 Woody, Not sure on the cost. Seems I recall someone once mention $50 or so. Pretty easy to R & R. Apache, Oil is not your problem. It would probably take a straight 40 weight. Probably higher at those meager temps. Link to comment Share on other sites More sharing options...
woody Posted November 11, 2007 Author Report Share Posted November 11, 2007 Ranger, I just finished replacing the FPR and the fuel filter. All is well she starts just like new. Thanks again for everyones posts. Nice to get answers from people who know instead of always going to the dreaded dealer Till next time Happy Motoring Woody Link to comment Share on other sites More sharing options...
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