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GMC S15 Repair

Repair and maintenance information for GMC S15 vehicles

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GMC S15 Repair Information

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Latest GMC S15 Questions and Answers

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1985 GMC S15 Sierra Classic 12Cyl 6.4L

Q: why is engine now overheating after new water pump and thermostat install and only at high rpm's, not at idle?

0 Answers Engine - by stan18 - Last updated 4/9/2015

1984 GMC S15 Sierra Classic 12Cyl 6.4L

Q: Why do i Flood randomly after shutting my vehicle off

0 Answers Engine - by Brandon S. - Last updated 11/18/2014

1985 GMC S15 Sierra Classic 12Cyl 6.4L

Q: why is engine now overheating after new water pump and thermostat install and only at high rpm's, not at idle?

0 Answers Engine - by stan18 - Last updated 4/9/2015

1985 GMC S15 Sierra Classic 12Cyl 6.4L

Q: How does the radiator fan clutch affect the temp. of the engine if it's going bad?

0 Answers Engine - by stan18 - Last updated 4/11/2015


Latest GMC S15 Recalls

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