Running rough and hard to crank

Tiny
SUNDANCE1469
  • MEMBER
  • 1992 TOYOTA PREVIA
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 195,000 MILES
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?
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Tuesday, May 15th, 2018 AT 10:00 PM

1 Reply

Tiny
KEN
  • ADMIN
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

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Thursday, May 17th, 2018 AT 10:46 AM

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