Question about 1997 Toyota Tacoma

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I have a 1997 Toyota Tacoma 4x4 3.4L with a 5 speed manual transmission with 98K miles. I just bought this truck and fairly new to Tacoma's but am mechanically inclined. I have a vibration that is mostly prominent in 2nd gear (initial shift into 2nd so RPM's are 1500-2750) during acceleration but vibration is in all gears/speeds. Less vibration when I baby it and lightly apply throttle or if I press in clutch. No difference in 4WD or 2WD and feels like is more from the middle of the truck to the front. I have had the propeller shaft completely rebuilt/balanced (u-joints in CV, rear most u-joint and carrier bearing had play), new OEM NGK spark plugs gapped to .044 and cleaned the throttle body (the ones I took out were very worn OEM plugs and t-body was dirty). I haven't checked the front drive shaft, fluid levels in the t-case, trans or diffs yet. I almost feel the engine is under powered but it runs very smooth at idle and the oil after 3K miles is still clean with minimal consumption and no smoke out of tail pipe. I don't know if the timing belt was done yet and would be willing to bet it hasn't. The clutch grab is at the top of the pedal but not slipping and the tires are BFG A/T's that have weather cracking in between the tread blocks but not on the side walls and approximately 50-75% tread. Brakes seem good and visual underneath reveals no fluid leaks, anywhere. The possibilities I have come up with: 1.Front drive shaft u-joints. 2.Clutch throwout bearing/pilot bushing 3.Engine timing is off 4.Transmission 5.Differential I'd really appreciate your expert opinion. Thanks!!

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Sounds like a clutch related problem to me.. a few clues you gave.. the vibration.. sign of a worn pilot bearing.. clutch not engaging until top of pedal.. worn clutch lining.. the next thing will be slipping or grabbing..

At some point you will need to replace the clutch and pressure plate.. have the flywheel resurfaced.. insist on a new pilot bearing and inspect the clutch master and slave while all this is going on.

With good stick driving habits..and good components.. it could last a lot longer than the original.. if should go a lot longer.

Timing belt- your overdue by 8k miles if it hasn't been done.
You may want to replace the water pump, thermostat and drive belts while your at it.

Best of luck!

Best of luck

Posted on Apr 19, 2011


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i fourd a repair manual on ebay for a 97 tacoma. there were also some that could be down loaded for a small price. hope this helps you.

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