i just bought my 02 max last month and so far i just changed the oil.at times the my car will have weird random power loss will pick up speed pretty quick half throttle and other times i would have to floor it to pick up speed but it will take time to get up i feel maybe the fuel filter could be clogged? i was trying to to look at the spark plugs today but i couldnt seem to see the other three plugs in the back do i have to take off the intake manifold??? anyone else have any suggestions thanks!!!!!!

 

more than likely your MAF. any codes being thrown? where does the power loss happen in the rpm range?

 

i cleaned it today with maf cleaner and it boged really bad at 2000rpm and i was in second gear it felt like i let of the gas

 

Need to replace the MAF, not just clean it. Cleaning really doesn't do much.....

 

does the maf usually go bad on the 5.5 gens??

 

My guess is a new MAF.

 

My guess is a new MAF. yes ^

 

Check to see if you have any pending codes, sometimes the cam position sensors won't light the SES light but will show a pending code (P0340/0345). My car was bogging every so often for a second or two, almost like the engine was cutting out but I wasn't getting any codes. I got my oil changed and they run diagnostics on the car as a courtesy and it showed a pending P0340, and earlier that day, my car had bogged hard twice in the morning, then ran normally after that. Changed the offending sensor, no more pending code...until last night. Two hard bogs then my car ran normally. No SES light, pulled the code, P0340. No problems on a 2000 mile road trip or the first 10 days back (changed it a few days before I left) and now it is back. Either they gave me a bad sensor or I have a wiring/grounding issue. Ought to be fun chasing it down. It is something that happens every 6-8 weeks or so, not something that happens regularly.

Anyway, point is, check to see if you have any pending codes that can point you in the right direction.

 

i will check it out thanks!