Toyota avalon 97 starts missing after driving on highway at 60m/hr after...

Bedi

New Member
...about 30 minutes...Please help!? I changed the Idle air valve, what else could be the problem? It starts to jerk after driving for about 30-40 minutes on cruise control/ constant speed, when I pull over the rpm is jumping up and down constantly but the car doesnt' shut down, if I turn the car off and turn in back on, it takes about 4-5 seconds of cranking rather than just a sec cranking to get the engine going again... No check engine light came on. So I dont know what could the problem be...otherwise the car runs fine, also if I put the car in neutral when the problem comes back (rpm fluctuating), if I give a high rpm at about 6000 or more for a quick sec, the problem disappears, but then comes back on after another 30 minutes of constant driving....Any help would greatly be appreciated!
 
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