...engine and first o2 sensor low fuel pressure or sticking/plugged fuel injectors failed o2 sensor pcv valve failed or stuck open cracked vacuum or pcv line/connection vacuum leak downstream from ...
...vacuum or PCV line/connection Faulty or stuck open PCV valve Failed or faulty oxygen sensor (bank 1, sensor 1) Sticking/plugged or failed fuel injector Low fuel pressure (possible plugged/dirty fuel ...
high idle while on neutral What is the cause of high idle engine while on nuetral 2004 hilux SR5 Toyota Possible vacuum leak ,
...engine is running so rich and you are losing mileage. You should be looking for an air leak in the intake system after the MAF, a vacuum leak into the intake manifold, or an exhaust leak at the ...
Question about Toyota Tacoma
...toyota prerunner 4cyl - replaced egr valve still getting check engine light Truck runs fine. Gas mileage has decresed by a pretty good margin. What else might the problem be? check for a vacuum
vacuum leaks on intake manifold, the air tube between the air filter. intake manifold vacuum hose. === clean throttle plate with Berryman carburator cleaner SEE sample picture HERE === Check for loose
...revving in neutral. have you made sure its not an engine cylinder.Dodgy H/T lead,spark plug,vacuum leak,It seems to happen when engine is under load.Are your ht leads showing any signs of
...vacuum leaks are a common cause and should be checked early on. There are many ways to do this, but the cheapest and easiest is open the hood and listen for the air whistling/sucking sound and follow ...
Question about Toyota Tacoma
...98 tacoma p.u./2.4rz engine replaced spark plug/ spark plug wire reads 8k oms check compression, check valve clearance, check injector for properly working, check for vacuum leak around this
engine running very rough, dealer code says misfire on all 6 cyl. EGR valve? That's a good place to start. Check to see if the EGR vacuum diaphragm is able to hold a vacuum. If not, the diaphragm is ...
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