HELLO 4000 MILES AGO I HAD MY ENGINE REBUILT

  • Tiny
  • Anonymous
  • 1999 Lexus ES 300
  • 148,000 miles

Hello,

4000 miles ago I had my engine rebuilt. Everything was running fine and pampered in order to 'break in' the engine. Recently, the vehicle has had a slow acceleration issue. The engine sounds fine, air filter is clean. About 3 times the car's RPM has dropped and seems as if it wants to stall when I come to a complete stop but it recovers within a couple seconds. Do you have any idea of what the acceleration and RPM drop may be related to?

Wednesday, March 13th, 2013 AT 12:51 AM

1 Reply

  • Tiny
  • mhpautos
  • Expert
  • 30,598 posts

May be a problem with the IAC (idle air control) system, check this out first.

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Wednesday, March 13th, 2013 AT 12:57 AM

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