Hello everyone this is my first post. i have recently been have a problem with my truck hesitating in park and in gear and it has a strong fuel odor. So far i have changed spark plugs, wires, cap, rotor and crank sensor was all changed before it started hesitating then two weeks later is started. What i have changed after it started hesitating is fuel pump, coil, iac. And yesterday i was checking spark and the passenger side of the truck was hit or miss with spark. I have a 1999 dodge ram 1500 4x4 5.2l.

 

Is the CEL on? If so what are the codes? How many miles are on the truck? Has the plenum gasket ever been replaced? Try removing the front 02 sensor and driving it around to see if your cat is clogged.

 

the cel is not on and the truck has 186,000 miles no i haven't changed the plenum gasket just the throttle body i will try the o2 right now

 

Took out 02 and truck drove good. cel didn't come on is it supposed to? Going to put 02 back to see how it drives

 

Is whatever in side the cat supposed to move now it wont let me put the 02 back in

 

Its probably a clogged cat, if the plenum is not replaced it will leak oil into the air intake and clog the cat quicker. Possibly some crud from the cat started to get forced into the 02 hole, not sure. Probably will want to either gut the cat or replace it and also fix the plenum. To see if its shot you can look down into the throttle body with the intake off. If you see oil in there it needs to be replaced. Also look into replacing the PCV valve. Best bet for that is to go to the dealer, its about $8.

This will answer all plenum questions: https://dodgeforum.com/forum/2nd-gen...um-thread.html

 

yes i did see oil in the intake and i replaced the pcv already.

 

Did you see oil IN the intake? If so, plenum gasket it blown, and will cause some interesting problems. (clogged cat being right up there on the list....) And no, the stuff in the cat isn't supposed to move. If it is, the cat is bad.

 

Thanks for the help guys just deciding on to gut or buy new cat.

 

If you don't have emissions testing/inspections, just gut it.