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Why does my 1982 engine rev in park but will not rev in drive?

(1990 Dodge D150)
in Tampa, FL on November 23, 2016
Again, engine cranks and revs fine in park and moves forward in drive under basic idle, but when you push gas pedal, engine will not rev up.
Displaying 2 answers & 2 comments
Popular Answer
on November 23, 2016
'YOU' can retrieve any stored trouble codes .. Copy and paste the link below:

Post codes for more information... Also > ▪️1982 - 'Carburetor' equipped?▪️
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on November 25, 2016
Yes, it is carb equipped. Being that it is a 1982, there is no computer to read codes. The engine is a 318 V8. Just so strange why it won't respond once to put it in drive.
on November 25, 2016
Cardone Reman Engine Control Computer Part number 79-5760 - This product is a fit for your: 1982 Dodge/Ram Truck D150 1/2 ton P/U 2WD 5.2L 2BL OHV 8cyl
Warranty: 1 YR

Got a yellow check engine light in dash when key is turned on? .. Trucks can be equipped with all kinds of different engine control systems .. I have a 1986 1/2 ton Chevy - nary a computer on it at all from the factory!
I figure it's carburetor problem, possibly the accelerator pump inside the carb... Revs up just fine in park but falls flat on it's face when in gear because there is more load on engine when in gear and that requires more initial fuel delevery from the accelerator pump .. You'll need an old school mechanic for this one .. It is possibility the electronic 'feed back' carb system .. Note: ethanol is hell on carburetor components! .. Good luck!

on November 23, 2016
Vacuum lines, fuel pressure at the throttle body, throttle position sensor, distributor cap/rotor/wires/plugs and vacuum advance. Replace/repair if needed.
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