My '05 has 55k on it. It was built in April 2005 and has an S in the eighth place in the VIN. Bought it last Summer. This is the part number on the current OPDA. Is this the original or has it been replaced?
8 digits followed by 2 letters? It's stock.
My '05 has 55k on it. It was built in April 2005 and has an S in the eighth place in the VIN. Bought it last Summer. This is the part number on the current OPDA. Is this the original or has it been replaced?
Yep, you got me there. Sorry for the misinformation.
Welp. Wish I had read these posts sooner. '06 LJ with 70k miles threw error code P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A) - DTC Code. Brought in to dealer and the ODP (OEM replaced with a 2014 build date code dealer says) gear is toast, the washer ate away and killed the camshaft. They want over $3k to repair the cam and lifters, or $7k to replace the whole engine. I'm thinking of going with stroker longblock instead. Anyone with more information of doing this type of thing?
Just met a guy today with a '05 LJ Rubi and we got to talking about this topic. We told/showed me he had replaced his.
I have an '04 LJ with, what appears to be a completely different opda on it.
My question is this, I am randomly having my oil pressure gauge tank and bounce around on me. Others have said they are known for that and that it's the sensor.
I noticed that after I changed my oil and went with 5w-30 (114k on engine and really freaking hot here in the summer) it almost completely stopped the bouncing gauge.
Now it will happen very randomly. When the gauge doesn tank the idle is effected a very little bit.
Would it be wise to replace the opda or just the gauge sensor?
Also are your 4.0L engines "chatty" almost "knocky" especially at cold start up?
One other thing to note. Months ago I did have the chirping/squeal described by some in this thread. It happened a handful of times at cold startup in the fall/winter and has never happened since. It did sound like it was coming from the opda when I popped the hood and poked around.
Correct. They can still fail on the older TJs, but the older OPDA design allows for better oiling of the OPDA shaft bushing and is less prone to failures. It seems like when I hear about the older ones failing, they tend to have a lot of miles on them (150k+ etc.). For the newer ones, there was a TSB (or maybe a recall, I can’t remember) with a VIN range that affected many of the 05’s. However, the 06’s and 05’s not affected by this still have more issues than TJs with the older OPDA design.I thought that only the 05/06 years had the problematic OPDA.
Welcome. Hell of a first post
Have you been able to inspect the OPDA gear and matching camshaft gear wear yourself? Any pics?
How can I tell if my 2005 TJ has already had the OBDA changed.