puffing fluttering sound under load-hills/inclines

anybody figure out what it is? 1gr engine with 25,000 miles
hear this damn thing under acceleration, especially loud when driving up hills and inclines

not losing oil/coolant, the engine seems to be struggling, literary running out of breath

 

You probably already did this but since you didn't mention it..

Have you tried taking a look at your air filter, make sure it didn't get clogged up with something somehow? If it sounds like its having trouble getting air, couldn't hurt to check your whole intake system. Maybe some animal made a little home in your engine bay somehow. Have heard more than one of those stories around here. Just a guess

 

no, its not that

I spend close to 40 hours disassembling the whole intake, cleaning everything from maf to tb to intake manifold

the car is down on power, the spark plugs look wet and oily, both threads and electrodes, no cel, doesnt loose oil etc

strangest f...ing thing in the world....

I was thinking maybe o rings, but this doesnt answer the loss of power

 

I'm down to last 2 things, that I need to check, but not sure how to

the throttle body, if its malfunctioning and not opening fully, then the air going by would not be enough for the amount of gas and air, would cause the sucking/puffing sound, + wet plugs

the thing is there is no way to remove the intake and start the car to see if it opens fully, the engine just dies

 

sorry to tell you this but my 2006 does the same thing and its not gonna go away. get used to it. i have had so many things done to fix this and it is still there. only thing i can think to fix it would be new truck. haha

oh yeah, does it actually dog a little? feel like a tranny prob? if so its what i have goin on.

 

how did it start with you? anything unusual or just one day....


I can't let it go, it makes me think there is something wrong with my car, plus wet plugs, long term it can not be good for our engines

 

My observation.


My mpg went down. Might have felt like a little less power too. Put in new air filter (22,000 miles). Seemed like power went up and did get a little smoother. Will need about a week to see if it improved mpg.

Note: the filter looked pretty white but since it is about a year old I figured I'd spend the 14 bucks to be sure.

 

What do you think about doing a compression test?

 

thats my next job

but the car is still pretty new

it really feels as if the engine is not getting enough air and is being overflowed with gas

I can smell gas from the exhaust in the morning......

 

if the engine is not running properly wouldnt it throw a code and turn the check engine light on?

 

it should, that's exactly the reason why this is driving me crazy

-sounds wierd
-loss of power
and no cels

it can be something mechanical, bend valves, damaged o rings, damaged exahaust

 

hmm one other idea, could you have damaged the mass airflow sensor somehow? I don't know if this would throw a code

 

hmmm.. that is a possibility

will search for diy how to check it
thanks