Running rough and hard to crank

1992 TOYOTA PREVIA
195,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
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SUNDANCE1469
  • MEMBER
  • 1 POST
Gave a complete tune up when I bought it but it runs rough unless I get the rpm's up . It is hard to start unless it is cold. I have put fuel injector cleaner, fuel system cleaner, octane boost, sea foam and gas treatment, several bit helps a little bit but not for long. what now?
May 15, 2018 at 10:00 PM
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STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
Hello,

It sounds like you have low compression in one or more cylinders. Lets start by checking it so we do not chase our tail.

https://www.2carpros.com/articles/how-to-test-engine-compression

Please run down this guide and report back.

Cheers, Ken

May 17, 2018 at 10:46 AM
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