Throttle hesitation???

[attackdog]

Once again, hello. My Yukon (01) has a hesitation when I push on the gas under normal driving conditions. It feels almost like the transmission is slipping. I have cleaned the throttle body intake area and still have the problem. Any ideas??? Thanks.

[sunbeam7011]

Originally Posted by attackdog

Once again, hello. My Yukon (01) has a hesitation when I push on the gas under normal driving conditions. It feels almost like the transmission is slipping. I have cleaned the throttle body intake area and still have the problem. Any ideas??? Thanks.

Mass air flow sensor??? -It happend on my 98 tahoe......

[lodownlv]

i dont know about mass air flow sensor.. we need more information on what is happening?

[t1mmaay]

Im having the same problem with a 97 yukon 4x4 after being on the interstate and hit residential areas where the speed limit varies say if im at a light then i hit the gas as usual it seems to hessitate and the you here the transmision bang like it slipped a gear or maybe went to 2cnd in an odd momnet. I cant figure out what will fix it and no one can diagnose it cause its hard to duplicate the problem which most mechanichs need to evaluate properly it seems it could be a fuel flow problem but most likley it sounds like transmission problem but why does it only happen after going fast and then going slow. It dosn't buck in high speeds only off the line or when trying to get a little more juice around a corner at slow speeds after going fast minutes before.


Does anyon know how to help?

[lodownlv]

wouldnt know by how you guys are descrbeing it i would need to drive it

[attackdog]

More Info: It almost feels like the tranny is slipping. Sometimes when I slow down then accelerate I hear a clunk type sound. Any ideas??? Thanks everyone.

[sunbeam7011]

Originally Posted by lodownlv

wouldnt know by how you guys are descrbeing it i would need to drive it

...thats exactly the way my 98' did. Again I replaced the mass air flow sensor (it was throwing that code at digignostic check engine light) and fixed it 100% for me.

[lodownlv]

LOL he is talking about trany slipping not maf which tells the Ecu the amount of air the engine is pulling Pounds per s2 in.

you have a shot band in your trany dude. u need a new one. these tranys suck!