I drive a 1999 Toyota Tacoma with ~ 45,000 miles, mostly in great shape (low miles). I just had it through the garage twice (once for oil / transmission fluid change and once for a check engine light that turned out to be air sensors). But there are two nagging issue that the mechanics have yet to identify:
When I'm at a full stop, foot resting on the brake, the brakes will let go and the car will roll forward if the radiator fan comes on or anything else begins drawing enough electricity. It seems the car doesn't have enough power to go around.
(The only other problem with the truck is that the gas pedal is a bit sticky when you try to press it sometimes. This isn't a big deal, but I'm not sure if that could be somehow related.)
Any idea how I could fix this problem? Is it possible a new battery or cleaning my batter connections may help? Thanks for your help!
2006-11-06 07:00:36 · 5 answers · asked by Dave R 1 in Cars & Transportation ➔ Maintenance & Repairs
Just to clarify - the brakes lose grip when the radiator fan or other electric devices come on. I hear you guys that there may be a leak in the braking system, but would a leak like that only become a problem when something else draws power?
2006-11-06 07:32:39 · update #1
The brakes could be a leaky check valve, faulty booster, or your master cylinder is developing problems.
Electrical is more than likely the alternator diodes.
Gas pedal problem probably requires replacing the throttle cable as it must be kinked or damaged somewhere.
2006-11-06 07:07:10 · answer #1 · answered by Anonymous · 0⤊ 0⤋
most braking systems run off engine vaccum the brake booster draws power off the intake. at a lower idle there is less vaccum in the engine. a power draw from the alternator will take more away from the engine look into power loss at the charging system then if thats not it try checking engine vaccum or check for any type of leaks in the braking system as far as the gas pedal sticking check the throttlebody see if it s carboned up often times that will cause it to stick.
2006-11-06 07:12:09 · answer #2 · answered by chicco18 2 · 0⤊ 0⤋
Electrical problems are NOT related to braking system! Your master cylinder may have leaky cups,but my first guess would be the vacuum booster has a seal leak!,,:-)=
2006-11-06 07:27:14 · answer #3 · answered by Jcontrols 6 · 0⤊ 0⤋
it should still be on woranty, i would go to the dealer and tell them about all these problems, a new toyota should not have that many problems.
2006-11-06 07:10:58 · answer #4 · answered by yfz450chuck 3 · 0⤊ 0⤋
sounds like the lines might have to be bled. get the air out of them.
2006-11-06 11:03:45 · answer #5 · answered by Anonymous · 0⤊ 0⤋