V70 2.4T hesitating when warm

mark01 · Post by **mark01** » 30 Jan 2010, 14:14

I have a 2001 V70 2.4T and when warm the car hesitates (holds back), but if you increase the throttle and boot it, you can drive through it and it clears.
Then when you back off, it's back.
It started about 6 weeks ago as an odd miss...and then it will be fine.
It's just got worse from there and now like clockwork it comes on after 20 mins of driving.
I've changed the plugs, coils, air filter and fuel filter.
There are no fault codes.
Really stumped now.
Any help is appreciated.
Mark.

Post by **jblackburn** » 01 Feb 2010, 10:04

Try cleaning your MAF sensor. Drop by the auto parts store and pick up a can of MAF cleaner, and spray the inside of the sensor (don't touch it), let it dry for 1-2 hours, and bolt it back up.

I've seen some that will work just fine at wide open throttle, but have problems at partial throttle.

rbodor3 · Post by **rbodor3** » 01 Feb 2010, 10:54

could be the MAF, could be a small leak somewhere, you sure it's not a tranny issue?

mark01 · Post by **mark01** » 02 Feb 2010, 13:38

Thanks for the replies.
I've fitted a new MAF...no change.
I'm going to clean the throttle body next.

I'll keep you posted.

Mark.

rbodor3 · Post by **rbodor3** » 03 Feb 2010, 10:44

what's your idle condition? does it move around the RPMs a lot at idle? If not I highly doubt your throttle body is the problem.

Post by **E170_Driver** » 03 Feb 2010, 23:04

I have very slight/subtle (rare) hesitation when driving down the interstate and feel it most often when the cruise control is engaged. Just cleaned my MAF today and the tranny fluid is next. Will let you know what happens.

Jan