OK I have never seen a timing chain cause 1 cylinder to drop. I am not saying that the timing isn't bad it might be but either way will not cause one cylinder to drop. Now a compression test on number 5 cylinder is very important and really should be done so we can see what it is doing and then check compression on another cylinder or 2 to compare it to. Now with that as for pulling the wire and it running the same could be compression, bad plug, bad plug wire, or bad injector. So if you like we can run a couple of tests but you will need a digital mulit meter at one point. Now first when you pull the plug wire is there spark? Have you pulled the plug and checked it? I would not pull the engine as that is not required to check out the basic things that can cause this kind of problem. You only would need to pull the engine to rebuild it. Let me know what you can and if you have a digital multi meter and we will do some tests on the plug wire and the injector.
Friday, August 28th, 2009 AT 9:53 AM