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Drives erratically

Tiny
DWBROWNEYE
  • MEMBER
  • 2009 TOYOTA CAMRY
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 15,500 MILES
Before the car is at full temp, driving 35-40 mph @ aprox. 1800RPM, foot evenly on the gas, flat road, car will seem to speed up and slow down, speed up and slow down. I have seen the tach. Jump up and down as it's doing it. Dealer can't find anything wrong.
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Wednesday, February 23rd, 2011 AT 11:40 PM

2 Replies

Tiny
JCNINJA636
  • MEMBER
  • 26 POSTS
Try disconnecting the battery (negative terminal first, then positive).
Leave the battery disconnected for at least 15mins.
While battery is disconnected disconnect the throttle position valve (connector attached to the throttle body. Possible 2 connectors).
After at least 15 mins reconnect throttle connector(s).
Then reconnect (positive 1st then negative) and road test.
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Thursday, February 24th, 2011 AT 3:40 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,128 POSTS
Also, check for vacuum leaks and if the check engine light is on, have the computer scanned to identify any trouble codes. Most parts stores will do it for free.
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Tuesday, March 22nd, 2011 AT 12:32 PM

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