Is I have had this 2008 4runner for 4 years and every time I change the oil I lose low end power for about 3 days. I take it to the dealership every time and they have no clue what's wrong with it.
Car-
2008 Toyota 4runner sr5 4.0 v6 4x4
Miles-
Just over 94,000
Service-
I have done everything to spec and ontime according to the manual
Engine oil-
Always use valvoline 20w-30 and on this last oil change yesterday I used full synthetic and still have problems.
Does anyone heve any suggestions before I trade it in on a tundra?
There is something seriously odd about this statement...
First off, what do you mean you lose low end torque? Do you mean you "THINK" its got a bit less power off the line, or is the vehicle actually stalling; unable to accelerate/get up to speed the same? There is a big differences between "Butt Dyno" and real performance issue and will help direct diagnostics between engine and transmission.
I need some more information on the vehicle and its service history to try and get an idea of what could be causing the condition.
~Where do you live?
~How long has this "low end torque loss" condition been occurring?
~How do you qualify the "low end torque loss?"
~When was the transmission fluid last changed?
~Was the proper WS Transmission fluid used?
~Do you have any MIL (Malfunction Indicator Lamp, also known as "Check Engine Lamp") on currently or any time in the past?
~Have you done any other major and/or minor service(s) to the vehicle since owning it?
Hopefully we can help you out and figure out what is going and hopefully it hasn't caused any lasting damage.
Post Note-
If you are resetting the computer every time (i.e. leaving it disconnected for at least 10minutes) you're resetting the learned values in the vehicle and it WILL perform poorly until it relearns proper values again, i.e. it will idle poorly until you let it sit about 5-10minutes to relearn proper idle; the transmission will shift differently and so on.
