Andy J
Well-Known Member
Hey guys,
My names Andy. I joined a few weeks ago when i bought my 2003 navigator. Its a very nice truck and i knew it had a few issues when i bought it. It had a very bad misfire and it would buck and jerk when i drove it. I gave it a full tune up, and changed half of the ignition coils, which took care of the majority of the misfires, but it still had a slight miss. I had a friend hook up a ford IDS, and he came back with a 10 percent drop in compression on cyl 6, but that shouldnt have been enough to cause the mis i was feeling. It wouldnt even give me a code for a miss. The other main issue was the timing chain rattle when it was first started. I knew that it probably had a bad timing chain tensioner, but it consistantly got worse.
Well, today i finally has enough and started to tear into it. I plan on tearing it down all the way to the bare block and completely rebuilding it. I bought the navigator so that i would have something larger and safer as my wife and i are expecting our first baby any day now.
I will take pictures and document the process so yall can follow along and maybe get some inspiration to tackle your own projects.
Heres where i got to today...
My names Andy. I joined a few weeks ago when i bought my 2003 navigator. Its a very nice truck and i knew it had a few issues when i bought it. It had a very bad misfire and it would buck and jerk when i drove it. I gave it a full tune up, and changed half of the ignition coils, which took care of the majority of the misfires, but it still had a slight miss. I had a friend hook up a ford IDS, and he came back with a 10 percent drop in compression on cyl 6, but that shouldnt have been enough to cause the mis i was feeling. It wouldnt even give me a code for a miss. The other main issue was the timing chain rattle when it was first started. I knew that it probably had a bad timing chain tensioner, but it consistantly got worse.
Well, today i finally has enough and started to tear into it. I plan on tearing it down all the way to the bare block and completely rebuilding it. I bought the navigator so that i would have something larger and safer as my wife and i are expecting our first baby any day now.
I will take pictures and document the process so yall can follow along and maybe get some inspiration to tackle your own projects.
Heres where i got to today...
