1993 d150 sputtering when warmed up

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TERRY464

Junior Member
Joined
Aug 5, 2013
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Location
Dothan Al
Ram Year
1993
Engine
5.2
Hello everyone, i am new on here. I have a 1993 dodge d150 le club cab that i found in a field. A one owner truck that had been sitting for almost a year. The body and interior are almost perfect. It has 191000 miles. My problem is, it runs perfect when cold, as soon as it gets warmed up it will not go over 30 mph without sputtering, back firing and trying to cut out. I have replaced the fuel in the tank and the fuel filter, air filter and an oil change. Where is the best place to start? It is 5.2. Thanks
 

crazzywolfie

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Apr 6, 2013
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Location
under the truck
Ram Year
81 93
Engine
5.2
try removing the o2 sensor and then driving it. if will go over 30mph after it is warm with the o2 sensor removed then your cat is most likely clogged because of a blown plenum gasket.
 
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TERRY464

TERRY464

Junior Member
Joined
Aug 5, 2013
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Location
Dothan Al
Ram Year
1993
Engine
5.2
There is no o2 sensor. Cat converter is gone and it has dual exhaust on it.
 
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