1998 Dodge 1500 4X4 help..
#14
I talked to the friend last night that I figured that prob out for last Sunday, and he has since gutted the cat and the thing runs awesome he says , using the same o2 sensor. He's replacing both anyway ,but not until this weekend after payday. I'm starting to wonder if the TSB or looking down the TB are both real indicators if the plenum is bad. Or if just removing it and looking is the only way. I'm also thinking if the cat's were bad and Chrysler did replace them for a while free, if that is the cause of the plenum going bad, opposed to the other way around , which is what I always thought. Hmmm
#15
I'm starting to wonder if the TSB or looking down the TB are both real indicators if the plenum is bad. Or if just removing it and looking is the only way.
I'm also thinking if the cat's were bad and Chrysler did replace them for a while free, if that is the cause of the plenum going bad, opposed to the other way around , which is what I always thought. Hmmm
I'm also thinking if the cat's were bad and Chrysler did replace them for a while free, if that is the cause of the plenum going bad, opposed to the other way around , which is what I always thought. Hmmm
#2. i don't see how a clogged cat and resulting backpressure would affect the plenum. the backpressure would interfere with engine vac and fuel flow and reduce manifold negative pressure. it wouldn't create positive pressure nor hurt anything other than maybe increase temps some.
i do see how excessive oil burn might contribute to a cat problem, but i think the bigger problem is just crappy cats.
hell, i may go out and remove my front 02 just to see what happens...
who knows, it might get the pig out of the back.
#16
Well i do know that you Can start the Motor and pull off the hose that go's to the Driver side vale cover And if you have Vacuum on it... You need to pull it and put a new Gasket on it.. That is the Easy st way that i have found to check to see if it is bad.. Thats how i found out my 99 Durango was bad and my 01 Dakota R/T...
#17
I talked to the friend last night that I figured that prob out for last Sunday, and he has since gutted the cat and the thing runs awesome he says , using the same o2 sensor. He's replacing both anyway ,but not until this weekend after payday. I'm starting to wonder if the TSB or looking down the TB are both real indicators if the plenum is bad. Or if just removing it and looking is the only way. I'm also thinking if the cat's were bad and Chrysler did replace them for a while free, if that is the cause of the plenum going bad, opposed to the other way around , which is what I always thought. Hmmm
#18
#1. i don't think the TSB is valid unless its a BIG leak. i also think all the damn stock one's leak period.
#2. i don't see how a clogged cat and resulting backpressure would affect the plenum. the backpressure would interfere with engine vac and fuel flow and reduce manifold negative pressure. it wouldn't create positive pressure nor hurt anything other than maybe increase temps some.
i do see how excessive oil burn might contribute to a cat problem, but i think the bigger problem is just crappy cats.
hell, i may go out and remove my front 02 just to see what happens...
who knows, it might get the pig out of the back.
#2. i don't see how a clogged cat and resulting backpressure would affect the plenum. the backpressure would interfere with engine vac and fuel flow and reduce manifold negative pressure. it wouldn't create positive pressure nor hurt anything other than maybe increase temps some.
i do see how excessive oil burn might contribute to a cat problem, but i think the bigger problem is just crappy cats.
hell, i may go out and remove my front 02 just to see what happens...
who knows, it might get the pig out of the back.
But the main Problem with the Cats is when your Car or Truck starts to miss on a Plug or a bad wire, it don't burn up all of the gas.. And then is burns out a Cat... And we wonder why.. If we all keep the plugs and wires changed it would not happen as much.. Like when your Check Motor light comes on and it steel runs ok we just let it go.. And No one can do that and get any miles out of a Cat...