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1991 Toyota MR2 Need answers

Tiny
PACO3190
  • MEMBER
  • 1991 TOYOTA MR2
  • 4 CYL
  • RWD
  • MANUAL
My friend has a 91 Toyota mr2 that has a idle problem and jerks a lil while shifting. At idle it sounds normal then bogs down for just a second or 2. While shifting it seems as if it's slightly loosing power then regaining. What could this be?
Tuesday, May 19th, 2015 AT 3:48 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,724 POSTS
Check for vacuum leaks on the engine and check the idle air control valve (IAC). The IAC is responsible for maintaining the engine idle speed.
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Wednesday, May 20th, 2015 AT 10:55 AM

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