glaspak845 wrote:
Just received this code. I cleared the code and will drive it tomorrow and see if they CEL stays off. If it does not, is there any harm in driving the vehicle a bit longer until I can either get the parts or have it serviced? Also, how difficult a job is it for me to replace with an average set of tools and is there any risk of breaking the glow plug when pulling it out.
I've also read a bit about 5v vs. 7.5v plugs, how can I tell which ones are the OE parts and more specifically, which ones are in my Jeep?
Driving it will be fine. If it is cold where you are, use the block heater when parked to assist with the starts. If you do need to change one, get in there will some liberally applied PB-Blaster around each glow plug socket, then drive it a few times adding more PB-Blaster in-between to loosen them up. That will lessen the chances of the plug separating at the base as so many have reported on here. If you need to replace 3 or 4, it would be wise to take the time to install a weeks kit since you'll have some of the parts removed anyway, but it is not necessary. If you do not install a weeks kit, you'll just need a replacement intake elbow gasket. IDParts should have them.
Most have gone with the 5V glow plugs regardless of the glow plug control programming in their CRD. They seem to give the best performance across the board even if you have a 7V tune.