I removed the radiator today and cleaned it, put it back in, flushed the system, etc. Now when I drive it, it vibrates when I have my foot on the gas accelerating or just keeping constant speed but stops when I take my foot off. It didnt do this before, so I dont know if water got where it wasnt suppose to go or if I didnt check the tranny fluid, cant remember. Thanks

1991 Dodge Dakota 318 V8 2x4 automatic

 

thinking it might be tranny fluid?

 

make sure you didn't get any water on the computer connection... I had that problem myself. pull off main plug and check for water...

 

It may be a miss or a vacuum leak. Maybe you accidentally hit one of the spark plug wires off.

 

I've switched radiators in my truck a few years ago and had the same problem, turned out to be the plastic fan shroud was vibrating. If it was me I would check to make sure all connections are tight and check for missing fan shroud screws, etc. I had used some black zip ties in place of missing screws which ends up looking nice and is fairly durable.

Let us know how it goes, good luck

 

Im thinking the distributor might of gotten bumped and made messed up the ignition timing. but imma check the spark plugs too. I know some vibration comes from the fact that my right shock is completly dead weight and the left one, i removed and busted the bottom bolts and still have to drill one of them out. Damn hard bolts, and spring in the way

 

So your 100% sure that it wasn't doing that before the radiator swap? I've been in situations before where I only noticed a problem after I had just got done fixing another.

I would keep checking things around the front of the engine near the radiator though, it could be a lot of things. A loose cap on something, loose screws or bolts, loose wires...the list goes on.

You weren't very specific though. Is this vibrating something that only happens when the throttle is on and it's just vibrating something in your engine compartment area or is it like the engine itself is almost hesitating and chugging and moving around abnormally and causing your truck to shake and vibrate where you can actually feel it?

 

i can feel the vib. through the floor and its noticeable. i think your right tho. was probably there before. but i do know the ignition timings off, so i have to fix that, so it might be a mix between that and the shocks. but its not everytime i drive but sometimes it will do that, but guess thats the fun of it, troubleshooting

 

So how's the progress going on this issue?

 

alls good. I didnt swap radiators, i ended up cleaning it out with HC acid. Stupid design with the radiator, up and down columns suck, be better if it were horizontal. but the viberation, i dont know still, I think its my suspension, it all needs to be replaced. tierods, shocks, etc