Very Poor Acceleration 2005 Tacoma
#21
You said the vvt-I controller was replaced, do you mean the oil control valve or the actuator on the end of the cam? Also, if the control valve was replaced, was the valve cover removed to clean the ports that feed oil to the control valve? If it was the actuator that was replaced, are you sure you got the timing correct when the chain was re-installed?
How about a compression test and leak down? Just to be sure...
How about a compression test and leak down? Just to be sure...
I am going to do a compression test as soon as I have a chance just for kicks. I just doubt that it cause it runs good on ocassion.
#22
Registered User
I'm just saying that I've seen other techs replace oil control valves and have them come back running better, but not as good as they should, because they had debris blocking the pressure supply port for the valve.
#24
Its an automatic btw. I really doubt its the tranny. Everything points to engine performance. Shifts fine and on time. Engine revs up slow like the cats clogged (I've had a clogged cat before).
#26
There are no obstructions within the exhaust system (perfomed exhaust pressure test). So its not a flow problem.
I just drove it to get lunch a little while ago, and the truck was actually doing very well. The throttle response was very light and a pleasure to drive. Its just intermittent and weird.
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88runnergomas
86-95 Trucks & 4Runners
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07-09-2015 01:12 PM