Last post on Nov 26, 2006 at 9:37 PM
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Toyota Tacoma, Truck
#891 of 2067 stuttering problem resolved (tps)
Nov 23, 2003 (6:03 pm)
I think I've finally resolved the stuttering problem on my 1997 Tacoma, with the help of some postings here, and no help from my local Toyota service shop. My Tacoma started stuttering very interminently about 15K miles ago at hi way speeds and recently began cutting and surging at street speeds and accelerations too. It was awful to drive. It always starts great and idles fine. I changed the plugs, wires, pvc, airfilter; no change. So off I went to the dealership. They said the computer didn't show anything wrong. I resolved to my Haynes manual, and the internet. The symptoms pointed to many things, but the Throttle Position Sensor met all the symptoms. I found this link: http://ttora-ne.com/RI/TPS.htm it explains how to test it. Simply put, the TPS is just a potentiometer that measures the position of the throttle valve. When I put an ohmeter from the E2 to the VTA and rotated the sensor; somewhere in the middle, the needle jumped all over. OK, now I knew the TPS was bad. I remembered my high school electronics class and potentiometers; when they get scratchy, rotate them a hundred times to clean the contacts. I did. Reinstalled the TPS, and my problem is gone. I will eventually replace the TPS, but now I can wait till the snow is gone. I believe the same effect to clean the TPS could be achieved by repeatedly pumping the accelerator without the ignition on, thus cleaning the contacts. Let us know if it works, and I'll let you know if mine lasts till spring.
Dec 01, 2003 (1:30 am)
When you change your oil have the shop hit the drive shaft with a shot of grease. This will prevent the truck from feeling like somebody just bumped you in traffic. Do it everytime...
Dec 01, 2003 (1:33 am)
#894 of 2067 2001 tacoma 4x4 double cab
Dec 06, 2003 (8:47 am)
purchased truck new mar 01. 9900 miles notices power steering fluid leak and noise with pump. Dealer replaced power steering rack. 72000 miles it leaks again. Dealer now says $800 for a new p/s rack and it is not under warranty.
Has anyone else had this problem. The truck is less than 3 years old. Very disappointed will probably sell, take loss and get another brand. Any help or suggestions? Clawsonflats
#895 of 2067 Re: steering racks
Dec 06, 2003 (10:41 am)
Yep! I know two people that have had to replace racks in their Tacomas, one twice but with more miles.
The one in our Avalon is starting to leak, too. I think you will find that some of the Toyota racks are made by Saginaw Gear (GM).
#896 of 2067 Factory security system (RS300) for Tacoma
Dec 13, 2003 (8:29 am)
My power door locks, sometimes, do not unlock when I disarm my security system. Re-arming the system and then dis-arming it again seems to correct the problem. I was wondering if anyone else with this factory system is experiencing this same problem.Thanks.
#897 of 2067 Power door locks
Dec 13, 2003 (2:23 pm)
There is a TSB for this problem. My door locks do the same thing but I just live with it.
#898 of 2067 Tacoma cold start noise
Dec 20, 2003 (12:25 pm)
Would like to hear if the Tacoma owner who was on the way to the dealer to have the motor noise checked out got the problem resolved (Msg #881) and #852). Had the same problem with my '96 Tacoma
when it hit 50K miles. My 2002's noise (rapping)started at 22K. I added 1/2 quart of oil to reach the 5.7 qt. level. No relief.
Dec 23, 2003 (7:03 pm)
if you have a 6 cylinder i rember hearing something about #1 rod bearing bring to big from factory most likley would have been a problem at 2000 miles but you never know
#900 of 2067 HAPPY ENDING--SO FAR
Dec 25, 2003 (3:20 pm)
I have written a couple of posts in the past about rapping from my 2001 Tacoma when the engine was cold. The dealer determined that it was a wrist pin and we made an appointment for the work to be done, under warranty. I took the truck in and they pulled the engine, tore it down and determined that the problem was the wrist pin in #4 cyl. I ended up with a new piston, rings, connecting rod, and crankshaft bearings (maybe just as a precaution?). The noise is gone and things seem back to normal. The only charge to me was .57 for a new taillight!! I checked everything external very carefully and they seem to have put everything back together properly. Time will tell....
The #4 cylinder gets the least cooling and problems tend to develop there first. I wonder what caused this.
Anyway, just to let everyone know Toyota honored its warranty with me, no questions, no hassle.