1999 CHEVROLET BLAZER FUEL SENSOR

  • Tiny
  • christopher100
  • 1999 Chevrolet Blazer
  • 175,157 miles

My 1999 Chevrolet blazer 4wd. 4dr. 4.3l vehicle has code po452(evaporative emission system control sensor). Can it be checked without dropping the fuel tank? I have read online from another person's post that this could cause automatic transmission to not shift properly while driving. Is this all true?

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Friday, October 11th, 2013 AT 11:04 AM

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  • Tiny
  • hmac300
  • Expert
  • 43,701 posts

This needs to be checked by a pro it doesn t effect your transmission but says vacuum isn't reading right in fuel tank. It cold be a bad vehicle control module or a short. But those are vin specific an dhave t be programmed into your vehicle. But it needs to be checked to see if pressure sensor is getting voltage and not a connection or wiring problem like a shorted wire.

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Friday, October 11th, 2013 AT 1:24 PM

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