BrentNClemson

Wanted to say hey and ask a couple questions.

Just got my first foreign vehicle, a 94 4Runner w/ the V6 and 4x4. I'll be using it as a daily driver and retire my 91 XJ to trail duty. Just starting to get acquainted w/ all the new Toyota stuff and wanted to address a couple issues.

1. The engine runs real strong (especially for 145k) but stumbles at low rpm and slight throttle. I feel it the most when driving in a parking lot or pulling in/out of a spot. Where's a good place to start? Clean the throttle body, MAF?

2. At highway speeds a moderate vibration can be felt when I let off the gas. It does this from about 70-85 mph. I'm thinking a u-joint has gone bad, but haven't gotten under there to look yet.

Again, these have probably been asked before, but I'm just checking to see if they may be problems that a lot of people have...hopefully w/ easy solutions!

Brent N.

rimpainter.com

Welcome to Toyota land Brent. Cleaning the TB would be a good idea no matter what. As for the MAFS, well, you don't have one. You have a VFM (or flapper). You can actually clean those too. In all honesty, it could be a number of things. It could be a improperly gapped plug, a bad plug wire, etc. I would start going down the list and testing some of those items (cheapest first of course) and see if you can eliminate the problem.

Best of luck and be sure to let us know if you have any other questions.

BrentNClemson

Hey thanks! I'll go through the ignition system and see if everything looks okay first. I forgot how long it takes to learn all these things about a new vehicle...guess I better get started!

rimpainter.com

A multi-meter and FSM would be a great idea for troubleshooting the hesitation...if you can swing it.

Flamedx4

#1 - More throttle - just put it to the floor, problem solved!
#2 - See #1