Alright guys, I need a little guidance here. tl;dr RPM dependent

>>16098719
Engine or trans could be fucked. Could be tcase or driveshaft or diff.

>>16098719
That sounds like more of a misfire than anything. But that depends on your definition of "vibration". Any chance we could get a vid? I've got a '94 Ex

>>16098719
Motor mounts son obviously I cant be sure but seems like a possible.

>>16098719
Have you scraped it on anything? Sounds like a driveshaft imbalance

>>16098719
Check to see if the rubber on your motor mounts is dry rotted severely or gone. Get under the vehicle and have someone rev it (safely) and take a look.

>>16098738

Congrats you've listed just about every component in the fucking drivetrain.

>>16099063

That was my initial thought, I checked to make sure all the plug wires etc were physically in place but haven't actually tested anything for continuity / spark.

I could shoot a vid, but it wouldn't really show anything. You can feel it, you can hear it, but it isn't dramatic enough to be visually obvious. Capturing a vid is also a pain in the ass because it only does it under acceleration / load which means the vehicle is in motion, but I'll give it a whirl.

On another note since you also have one of these shitboxes, I have an electrical gremlin that isn't causing any problems but it's annoying as hell. The system voltage fluctuates pretty wildly at any RPM, enough that I can see the brightness of all my lights pulsing with it. The more load I put on the electrical system, the less the fluctuations it seems. Any ideas?

>>16099081
>>16099110

Possible, I'll have to check tonight or wait until the morning when there is better light. I can rev the motor myself from under the hood and the motor doesn't move any more than you'd expect from torque.

>>16099088

There's no chance of having scraped in on anything any time in the last several months. 95% of its miles since about July have been 65mph freeway miles, I haven't even had it off paved roads since probably June.


Since people seem to be leaning towards drivetrain, could it be u-joints?

>>16099522

I don't remember if OBD1 systems flash the check engine light under serious misfires, but i suppose you would have mentioned that if it were the case. I had some really oddball problems with mine when i first got it, and some i was lucky enough to have a lab scope to figure out. Its a little difficult to diag something without feeling it.

Id ask you to somehow scan your car for codes, if you can get your hands on an obd1 scanner. However because obd1 is a headache you could very well have a shitton of codes in there that mean shit, so clear them first, drive the thing and make the shudder happen again to see if you can set a light. Then scan.

Also, I've found a lot of good help on the "explorerforum". Theres enough people on there that may have experienced the same thing and can point you in the right direction.