Question about 1995 Cadillac DeVille
Got a 95 Cadillac deville with a 4.9. I replaced coil in cap. when it get real cold all it does is crank. last time I took cap off used a hair dryer and warmed up the pieces inside the distributor. put cap back together and it started. this has happened 3-4 times it runs fine but it seems when it gets really cold it does it. no codes so I was thinking pickup coil but im really clueless so I need help.
Posted by Anonymous on
Have heard of condensation causing that problem on distributor caps. Don't know why it couldn't be a problem for coils. Maybe a crack getting moisture inside.
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Posted on Jan 02, 2017
The "check engine" light will "light" when there is a malfunction in the engine management system. The fault code is then stored in the computer. The computer must be scanned to retrieve these stored faults to pinpoint the malfunctioning component. We recommend buying your own scanner and doing it yourself. With a pocket scanner you can check for fault codes to find out why the light came on in the first place. You can clear your cars trouble codes after you replace the malfunctioning sensors.
Posted on Jun 26, 2008
This happend to me before. Go back and check the firing order and make sure the spark plug wires are in the right place. A Chilton auto repair book for your vehicle, available at many auto part stores are really helpful. Check the rotor and distributor cap also and make sure they seat properly. Assuming the distributor itself has not been removed it should start. If the distributor was removed from the vehicle and not installed in the exact position it was before (maybe a couple of notches off) you will have to find top dead center on the compression stroke on plug #1 and check to see if the rotor is pointing at the at plug wire #1 on the distributor cap. The distributor itself can be adjusted by loosening the locking nut and turning it slowly clokwise or counter clokwise to ****** or advance the spark. make sure all your vacume lines are in the right place also. All these procedures can be found in the book.
Posted on Apr 27, 2009
Well the only thing i can think of is when your fuel is below half a tank the pressure relief valve and a rubber hose between the pump and the fuel line is exposed. Its possible your fuel is leaking back into the gas tank as it sits overnight, ect. You may want to perform a fuel pressure check when the the gas is at 1/4 tank and been sitting for awhile, pressure should hit 55 seconds after key is turned to run position.
Posted on May 13, 2009
Try replacing the fuel filter, but it sounds like you have a weak fuel pump. Your cold start pressure should be 62-65 psi and drop about 5 psi when the engine is running. Anything less then 62 psi is going to cause you to have starting issues, you can also test your fuel pump by blocking off the return line to see if you get 75-78 PSI. this is just a test to see if your fuel pump is still good. If you have less then that with the return line blocked off, replace your fuel pump but check your ground wire first. The ground wire is separate from the wire harness and grounded to the frame and a bad ground will give you a weak pump.
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Posted on Mar 20, 2010
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