Scottie! I have a 2004 Toyota Celica GT I bought over a year ago to fix up. I ended up replacing the engine with much lower miles as the original engine had 295k miles and was burning oil like crazy. I got the new engine replaced, drove it like 100 miles and the car broke down on me and threw a MAF sensor. I had recently replaced that sensor so I thought it was weird. Car sat for a few months and then it started right up, then died a couple of miles later. Long story short the MAF sensor code went a way and a Camshaft position sensor code came up. I replaced the sensor, drove it like 20 miles and then the car stalled on me and died. I was able to start it again one more time and then it backfired and now it won't start at all. I tested the camshaft sensor for continuity and everything checks out. Someone I met told me that the timing chain probably jumped timing and now my valves are bent. Please help! This was supposed to be a fun little project car, it's not fun anymore.
I just did a compression test and these are the results:
Cyl 1: 175
Cyl 2: 170
Cyl 3: 160
Cyl 4: 100
Cylinder 4 is quite weak, they should all be within about 10% of each other. You have an internal engine problem. You can do a leakdown test on that cylinder to find where the compresson is leaking away. Could well be a damaged valve.
Well it probably did. What you can do is take out the Forest Park plugs and do a compression test and if you jump timing the compression will be all low and you know the engines pretty much destroyed inside
I just did a compression test and these are the results:
Cyl 1: 175
Cyl 2: 170
Cyl 3: 160
Cyl 4: 100