I know this is the not the right place for this thread and for that I apologize. However, I have confidence in the people who read and post in this particular forum, that they will give me a real, no BS answer. So, I decided to chang my 2 upstream O2 sensors per MT reccommendation. I have a 2002 SCREW with 38,000 miles on it and plus I though it would be good ojt for myself. I crawled underneath to take a look and found that the drivers side would be fairly easy, but then the passenger side would be a royal pain. Then I decided to let a auto shop do it. After the truck was at the shop for a few hours, the guy calls back and says in order to change the passender side upstream sensor they would have to drop the exhaust and remove the exhaust manifold. I thought they were full of sh**, and told them I'd be there right away and not to do any work on my truck. My question for you guys is, do you really have to drop the exhaust and manifold to change the sensor. I thought I read something on here where poeple have changed them, it's just that they were a pain in the rear. However, I don't remember them saying anything about removing the exhaust manifold. What do you guys think?

Sorry for the long thread...

Joe

 

I need to do mine also and it does look ruff,but i did some searching on it on here and some did it thereself and i did not here of droping the exhaust.

 

Find another shop !!!
I have never had to remove or drop anything to change an O2 sensor. Some are a real pain to get to , but if you take your time and think before you act you should be able to do it yourself.

 

He needs to find another job!!

I just changed both of mine last night. It took me just under one hour from start to finish!! I did NOT remove anything to gain access. Not the exhaust, dipstick tube, or inner fender.

 

Thanks for the replies guys. I thought that guys was full of it, but I knew the passenger side was gonna be a chore!

 

let us know how it turns out.

 

It's not that bad. The hardest part is getting that clip off!!!! A drop of WD-40 sure makes it a lot easier. I took my transmission dipstick tube off (1 bolt ) and it made the operation a lot easier. I didn't remove anything else. It only took a few minutes to replace both front O2 sensors on my 5.4. Yours are probably fine though, especially with only 30,000 miles on them. Mine were still fine at 160,000 but I got a wild hair and replaced them.