Having problems with your 1992 Dodge Dakota ?

Bucks or jerking feeling cruising at highway sppeds

\015 Truck is good on acceleration and deceleration, changed ecm due to other problems has new plugs and wires cleaned intake and map sensor, starting to get worse too but idles and revs up great ,had new cap and rotor 5000 miles ago, not sure where to go from here\015 Posted / edited by AnonymousUser on : 26-10-2020

Answers :

It sounds to me like the drive train is getting loose. By loose i mean that the universal joints, and linkage to the rear differential is worn.
\015\012The engine speed is trying to adjust to keep the speed sensor from the transmition to the cruise, and the speedometer constant. when the engine begins to slow down, or speed up the loose drive tran will be amplified by the loose linkage. It is easier to notice this problem with a standard transmition.
\015\012If it has a stick shift and you are in a low gear try speeding up and then letting off the accelerator and it will ****. If it has an automatic it will not be as evedent but you can try putting it in the lowest gear and do the same. It could have a clank sound when you hit the gas, or when you let off the gas, but not always the case. If the universal joints are going bad it may have a vibration when you get up to 40 MPH or so. This will shake things apart if you wait too long.
\015\012Also if the universal joints are wearing out it could have slop in it when you have it parked and give it a strong wiggle from the drive shaft just in front of, or just behind the universal joint.
Cleaning the map sensor may seem to help but with what you are describing, it is the map sensor.
Repair Help & Product Troubleshooting for 1992 Dodge Dakota

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