Question about Toyota Corolla
Clean the throttle body and idle air control valve with reg carb cleaner ,do not spray the mass air flow sensor. Clean with a rag soaked in the cleaner, have someone hold the throttle down from inside car spray until clean. put back all disconnected hoses and hold throttle to floor when starting. Then quickly release and give 2 half revs and release. allow engine to idle. It should now idle smoothly. If not check for cacume hose leaks an replace any that feel spongy or soft or have splits in them.
Posted on Apr 18, 2013
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Posted on Jan 02, 2017
do a compression test to make sure the cylinders are in balance.
if the compression is good,change the plugs wires cap and rotor.
also air filter,fuel filter and clean the throttle body inlet with a cleaner.add an additive in the full tank of gas to clean the injectors.
Posted on May 22, 2009
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