Truck lost power while hauling uphill
Veteran
Joined: Jun 2009
Posts: 426
Likes: 1
He's talking about the intake manifold (we call it a kegger). to check the plenum gasket, pull the throttle body off and look into the manifold. If you see oil, you got a leak. Another way to check if the plenum is leaking is if your truck says dodge on it.
Grand Champion
Joined: Apr 2008
Posts: 7,055
Likes: 7
From: Lee County, North Carolina
the plenum gasket keeps the oil in the lifter valley and out of the cylinders to be a little more specific.
when you all of a sudden lost power, could you bring the rpms over 2500-3000, or can you now?
if a big chunk of the catalyst material in the catalytic converter broke loose and plugged the exhaust then you would have similar issues - random misfire and running rough.
when you all of a sudden lost power, could you bring the rpms over 2500-3000, or can you now?
if a big chunk of the catalyst material in the catalytic converter broke loose and plugged the exhaust then you would have similar issues - random misfire and running rough.
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Amateur
Joined: Nov 2009
Posts: 36
Likes: 0
From: Northern NJ
thanks for clearin that up better for me... yea i can still hammer on it a bit it just runs rough.. im about to go check all the plugs and wires individually right now.. i'll let everyone know how im makin out in a bit thanks
Veteran
Joined: Jan 2008
Posts: 317
Likes: 1
From: West Grove, Pa
sound like what happen to me when i first got my truck the cat clog it self up and burnt all 8 plugs and cap and rotor. Pull the o2 senor out befor the cat and start the truck to see if that fix it.
All Star
Joined: Jan 2008
Posts: 770
Likes: 0
From: Southwest Michigan
If your cat is clogged you will lose power and it will burn up spark plugs. A clogged cat can be caused by a blown plenum gasket. My cat was bad when I bought the truck and #5 and #8 spark plugs had their electrodes burnt off, causing a lot of misfiring. Good luck.
Grand Champion
Joined: Apr 2008
Posts: 7,055
Likes: 7
From: Lee County, North Carolina
^see how everyones questions and suggestions are coming together.
the plenum gasket is the most discussed topic, followed by a bad cat (which is screwed up by the bad plenum if it happens to not be one of the defect OEM cats) and upstream o2 sensor, then one of about 4 different components in the dana 44 axle.
edit- the 46re transmission is the most discussed topic, followed by the things above.
pull those plugs and let us know the condition.
smack the cat with a rubber mallet and listen for a rattle.
check the plug wires for cracks or melted spots.
the plenum gasket is the most discussed topic, followed by a bad cat (which is screwed up by the bad plenum if it happens to not be one of the defect OEM cats) and upstream o2 sensor, then one of about 4 different components in the dana 44 axle.
edit- the 46re transmission is the most discussed topic, followed by the things above.
pull those plugs and let us know the condition.
smack the cat with a rubber mallet and listen for a rattle.
check the plug wires for cracks or melted spots.
Last edited by Sheriff420; Dec 1, 2009 at 10:58 AM.