Wow, glad you got it solved!

 

Sweet glad you figured it out!

 

same problem with my 98 4runner i think im going to change all the exhaust system,that way a get rid of the rusted oem muffler and pipes

 

Please Help!

I have a 1995 Toyota tacoma 2.4l 2wd truck with 139,000 miles. While driving on the road or the freeway i get this thrusting motion (I guess you would call it a surge) under a load in 1st, 3rd and 5th gear. It usually occurs only when going up a slight grade. If i get up on the gas pedal it will stop or if i down shift and raise the rpms.

For example: while driving on the freeway at 65 mph in 5th gear the truck starts thrusting or surging if i bring the trucks speed up to 75 the thrusting disappears or if i shift into 4th gear it goes away.

The truck idles perfectly now that i replaced a few parts, but the surging is driving me bonkers.

I have taken it to several mechanics and they cant seem to figure it out.

This is what i have done to it so far.
Replaced the following:
Plugs, wires, cap, coil pack, rotor. air filter, oil change, TPS, transducer, pcv, valve cover gasket, fuel pump, fuel filter, clutch kit, changed transmission fluid, replaced a couple of vacuum lines.

I cleaned the throttle body, IAC, MAFs

I get no codes or check engine light what so ever.

I have checked to see if the check engine light works properly and if i disconnect the TPS or MAF the engine light comes on and i also get the codes.

Any help would be greatly appreciated.