2001 Saturn SL1 engine knock

Tiny
BUCKBUICK
  • 2001 SATURN SL1

Noises problem
2001 Saturn SL1 4 cyl Front Wheel Drive Automatic 120000 miles

My daughter's 2001 saturn SL1 knocks when accelerating during warm weather, in the winter it doesn't. What could it be?

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Sunday, April 12th, 2009 AT 10:32 PM

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Tiny
RASMATAZ
  • MEMBER

Check the EGR valve if its not opening exhaust gases will not recirculate and cause the engine to detonate/ping called spark knock-

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Sunday, April 12th, 2009 AT 10:37 PM

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