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1997 Toyota Tacoma Cylinder 2 Misfire

1997 TOYOTA
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MACK505
  • MEMBER
  • 2 POSTS
I have a 1997 Toyota Tacoma, 4WD, Extra Cab, 4 Cyl, 2.7 Liter engine, 250,000 miles. The check engine light came on and indicated misfires on cylinder #2.

I tested the compression on the #2 cylinder and it was under 50, where the #1 was around 140.

1) What should my next step be?
2) It still runs ok, is it ok to drive?

Thanks!

MP
Feb 4, 2007 at 11:49 PM
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LOSONE
  • ✓Experienced Mechanic
  • 1,616 POSTS
The most common cause above all others in a 97-98 Toyoya is a clogged fuel injector. The input to the injector has a very fine filter. You can remove the injector rail, remove the injectors and clean the filter. On a truck with that many miles I would remove all of the filters. I have done it many times. It beats installing a new injector.

Make SURE you change the fuel filter! It is a bear to change but it is most likelt the cause of the clogged injector.

Good Luck Losone
Feb 5, 2007 at 3:41 AM
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Suggested Repair

Remove the fuel rail and clean the fine inlet filters on the injectors, including all injectors given the high mileage, and replace the fuel filter, which the expert identified as the likely cause of a clogged injector.

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Conversation Summary

The owner of a 1997 Toyota Tacoma 2.7L reported a check-engine light and misfire on cylinder 2, with compression under 50 psi compared with about 140 psi on cylinder 1, and asked about the next step and whether it was safe to drive. The expert said a clogged fuel injector is the most common cause on 1997-1998 Toyotas and recommended cleaning the injector inlet filters and replacing the fuel filter.

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