Question about 2001 Toyota 4Runner
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Posted on Jan 02, 2017
SOURCE: rough idle
check you throttle position sensor first then fuel pressure regulator, then fuel pump. i have a 92 and had to recently do a massive overhaul. my rough idle was caused by a malfunctioning tps with a small exaust leak causing it to race and an intake manifold gasket. also check your idle speed adjustment settings.
Posted on Dec 03, 2008
SOURCE: 2000 Camry 4 cyl 2.2L.
sounds like you have a problem with the spark the coil may be on its
way out or there may be oil in the spark plug holls shorting out the
your best bet is to pull the leads out 1 at a time and and look down and check for oil if there is oil there get a new rocker cover gasket.
if no oil refit plug leads loosely and start the car remove one lead at a time slowly and look at the spark cumming out the end off the lead is it blue? if so it is ok if it is yellow and dull you have a coil problem. also check that the spark is only coming out the end of the lead as it may be coming out the side of the lead and shorting to earth,
you can do this by slowly moving the lead around the top of the spark plug holl and see were the spark is coming from
be carfull no to shock your self as it hearts like hell
Posted on Jan 01, 2009
SOURCE: 1995 Toyota 4Runner. 4WD
I had the exact same problem and after reading all of the advice on the internet (mostly saying "bad o2 sensor") and changing out every sensor imaginable, distributor cap, rotor, spark plugs, plug wires, air flow meter, fuel injectors and harness and every other "fix" I had read about, I took it to a mechanic. $1000 later and a new valve to replace the bent one and my 4runner runs like new. Which for the sluggish 3.0 isn't saying much anyway. Point being that I probably threw 1000 bucks worth of new parts on it before I actually took it in and got the problem taken care of. Save time and money and take it to a pro or pull the engine apart and check the valves yourself.
Posted on Apr 26, 2012
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