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I had my valve cover gasket fail and it leaked oil into my spark plug well. So I replaced the valve cover and that spark plug boot that was full of oil, installed new spark plugs and now the car won’t start. Just turns over… Could the oil in that spark plug well have killed my coil pack? And would that keep my car from starting?
Joe Fields how much oil did you let drain into the cylinder . when you replaced the coil pack did you remember to plug the pack back in . If you did happen to flood the cylinder with oil removing the plug and cranking the engine will displace the oil . while you have the plugs out check that you have spark on all the plugs . you may also want to confirm you got the plug wires in the right order . also check that the boots are seated properly on the plugs, fully engaged.
Most certainly will stop the car starting, if you have a spark tester or and timing light you can check the spark, also listen realy carefully when you turn the car on you should hear the wine of the fuel pump for a second or two when the key is put in the on position. If you dont mind risking a nasty shock you could pull the lead out and hold it near up to the tappet cover to see if you can hear the crack of a spark while the engine is turning over. (MAKE SURE YOU DONT HAVE FUEL ON THE TAPPET COVER OR IT WILL START A FIRE) For a car to start it needs 3 things, Fuel, Spark, and Rotation. You have rotation from the starter. You need to confirm the fuel and the spark.
OK Joe, So you replaced the valve cover gasket and coil pack boot, but what about the coil. You must have coil on plugs, so you’ll have to check each coil. You can get a tester that reaches down into the plug from the outside of the plug well and lights up with each spark pulse. Take all the plugs out and crank to blow out the oil. Clean all the plugs with electrical cleaner or brake cleaner and reinstall. Make sure the coils snap down on each plug and reconnect all wiring. Turn the key to on for a few seconds and check for fuel pressure at the fuel rail. The port looks like a tire valve. Push in, but have a rag over it to catch the fuel spray. It should start now. If not, double check all your connectors and fuses. There is probably something simple, since it ran before changing the valve cover. Good luck.
As well as my vehicle. It doesn’t start. I’ve replaced the crank sensor, and still nothing. The only noise that is coming from under the hood it the sound of the starter. And when the key is turned. The engine turns n their is no noise. Jus the starter. Any ideas what this pRobles could be?
I have a 2004 Nissan Altima 2,5 ,trouble starting sometimes not always. The car will normally start on first crank, second crank won’t start and I will wait one hour or more.Trying to start car,car sounds like it want to start but will not start. Please help……..
Hello all, I also had a crank no start problem 06 qr25de. Replaced coils, plugs, injectors, fuel pump, head gasket/other gaskets. and checked all sensors with oscilloscope. Car still didnt want to start. We said f**k it and called wrench.com and won the lottery. A 35+ year nissan mechanic came out and figured out the problem. The coil packs are wired in behind the intake plenum and tend to wear out causing 2 of the coil packs to have a higher resistance which tricks the computer into thinking the cars being stolen and activates anti-theft mode. If anyone is having a no start problem have someone qualified check your coil packs to make sure they are the same resistance. The guy said hes seen this issue no more than 3 times in his entire career so its pretty rare but I also do see a lot of crank no start posts with no solutions being posted.
I have the same General problem my car cranks no start I’ve tried everything sensors even bought a new ECM still crank no start getting power to allMy coils 12 V please somebody help me also my windows just randomly roll down the other day my security system light flashes when the car is not armed could that possibly have something to do with my issue
I have a 06 Nissan Maxima and one code comes up p0300 & I replaced my intake gasket ,spark plugs,ignition coils. What else can be the problem?
Have a 2005 Nissan Altima 2.5l did head gasket and ran good after .completed..went to drive after and wouldnt start turns over cheaked spark .no spark one 1 cylinder all the rest fire and spark moved coil packs around to see if it was bad coil pack nothing cant get power cheaked all connections and at a wall any ideas ple ….as
I have a 06 Nissan Altima changed alternator changed my spark plugs and my battery fusible link my fuel pump is good car started up 1 time after putting new spark plugs but only when a few miles smoke coming out the muffler none stop so pulled over car wont start just turn over anyone know how to fix this problem @rudy
