poor idling and loss of power

[landtank]

Well changed out the rear O2 sensor and after 3 trips it is still out. It will be a while to see if it indeed fixes the idling problem. I'll keep this thread up to date as things progress.

 

[landtank]

I thought that I'd close this thread with what I beleive was solution to the problem.

My truck started to behave similar to anothers in that it was having trouble also on cold startups. And as mentioned above and in that thread, the fuel pump relay could be dirty.

I pulled the relay and cleaned it some 3k miles ago and haven't had any idling issues since.

Thanks for the replies everyone

 

[EarthX]

Needed to bring this back........can someone tell me where the fuel pump relay is located? thanks

 

[landtank]

the relay is mounted on the DS fender near the firewall and is easier to see from the passenger side.

Here is a thread with pics on how I cleaned mine with a book of matches.

https://forum.ih8mud.com/showthread.php?t=32349