Just switched back from Royal Purple to Mobile 1 and it's sooooooooooo much better. Also changed the PCV valve since I'm at 55k. Was gonna do the EGR valve too, but it started raining. I'll do that plus the spark plugs next week. Def a noticeable change from PCV valve and fresh oil. (my Jeep HATED RP!!)
Cool, let us know how it goes. Cut about 3/16 in. off the bolt that's hard to get out and chamfer the treads real well, and also sand/file/grind the little lip off the bolt head. This will make the change next time (if there is one for you) much easier.
You can get one at NAPA for 28 bucks. I changed mine with spark plugs and oil jeeps running grea. Next I am going to clean the intake it was covered with oil that got pass my pvc valve. look into your intake there is alot of oil in there.
Gregums79, where you at down there? I grew up in Burbank by all the studios and lived in Northridge, Granada Hills, and Chatsworth before bailing out for greener pastures. LOL, is the speed limit still 3-5 mph on the freeways during rush hour?
Nice!! I'm in Woodland Hills, which is really close to Chatsworth. The speed limit is def still 3-5 mph but pretty much all the time!!! Hahaha what made you move??
RP makes the engine run rougher, as you have seen several here also attest to. It is also more costly than a top quality synthetic. It is marketing BS claiming it is superior. If it was any good, then why do no Nascar, Indy, F1, ALMS, Rolex series, or any other professional road race cars use RP ?
RP makes the engine run rougher, as you have seen several here also attest to. It is also more costly than a top quality synthetic. It is marketing BS claiming it is superior. If it was any good, then why do no Nascar, Indy, F1, ALMS, Rolex series, or any other professional road race cars use RP ?
I just think RP works great for iJeep because he has a 3.7 without MDS like me. Lol. I bet Royal Purple does run really well for the 3.7 and not the HEMI.
I just think RP works great for iJeep because he has a 3.7 without MDS like me. Lol. I bet Royal Purple does run really well for the 3.7 and not the HEMI.
I'm at 55,500 miles (2005 WK 4.7L) and the check engine light came on. It gave me a DTC Report of P0406 which is Exhaust Gas Recirculation Sensor A Circuit High = EGR position sensor input above the acceptable voltage range.
I'm thinking this means it's time to replace ECR Valve. What does anyone/everyone think?
Replace PCV too at this mileage?
Do we need to use OEM parts (or certain brands only)?
Does anything else need to be replaced at this time?
Im with you Amsoil... I run it in everything but the tranny... Just because i don't want to do go to the dealer for the trans reprogram. But the Engine, T-Case, Diffs, Air Filter, and Oil Filter are all Amsoil.
Greg, it wasn't hard at all. Just make sure you have a good amount of different extensions! Those will help a lot (Including the spark plugs in the back). I had to only remove I think the fuse box, but that wasn't hard . It took me a good 1 hour taking my time.