When it rains, or I wash off the engine the truck runs ROUGH! Last time it did this I had washed off the engline and it ran rougher than ever. It would actually die for a split second and then restart, the lights would dim coming up to a idle, the security light on the dash would keep coming on even with engine running, check engine light was on. I brought it to Auto Zone hoping I could get a clue as to whats shorting out, but when they connected the scanner, the port was dead.
After a night of sitting it started driving right again.
Well now, the weather has been dry, I have not washed the engine off since, but its all of a sudden running rough, missing like crazy during any acceleration. I thought maybe it was bad gas. I put some octane boost, and fuel system cleaner, but to no avail. I bought a fuel filter, but cannot find where it goes. I checked along the whole under side along the frame, see nothing. I JUST replace plugs and boots about 18,000 miles ago. Was running GREAT after that. Dont know if these two issues are the same, or if I have two different issues causing the missing.
Thursday, November 12th, 2020 AT 8:30 AM