it could be one or the other or both, i swapped on my newer tahoe 20's around the same time i changed my plugs and wires. i used ac delco wires and ac delco oem iridium plugs (part number 41-110, from advance auto parts). i replaced my air filter and cleaned my maf not to long ago. and my throttle body was cleaned a while back as well. my fuel filter has been changed as well in the past. i have intake,exhaust,w4m tune,newer tahoe 20's.
ive been reading up about seafoaming and while most people have had great success the 1 time i used it in my 95 s10 i had a horrible expierence. after the seafrom through the vac port it put on a nice smoke show and when i drove it i could tell the difference right away, a couple days later my truck wouldnt even run because the spark plugs were so fouled out. left me stranded on the side of the road.
anyway just curious your guys thoughts and opinions on what to check,do,etc...this is on a 04 denali with almost 92k miles.
ive been reading up about seafoaming and while most people have had great success the 1 time i used it in my 95 s10 i had a horrible expierence. after the seafrom through the vac port it put on a nice smoke show and when i drove it i could tell the difference right away, a couple days later my truck wouldnt even run because the spark plugs were so fouled out. left me stranded on the side of the road.
anyway just curious your guys thoughts and opinions on what to check,do,etc...this is on a 04 denali with almost 92k miles.
