Quote:
Originally Posted by FWB
This is assuming you have an air filter actually doing its job, dirt isn't getting drawn in there is it?
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It has a good air filter and seals up nicely. The MAF sensor sits inside the air filter. It is clean, and the throttle body is clean above the plates.
I was tuning up my Grand Marque, 120K miles, so I opened the throttle body on it to see what was inside. I has carbon on it too but less sooty. More miles but less overlap on the valve timing. I have to believe the overlap is playing a key roll.
Thanks for the replies to all who responded.