1999 Chevrolet Blazer fuel sensor

1999 CHEVROLET BLAZER
175,157 MILES
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CHRISTOPHER100
  • MEMBER
  • 13 POSTS
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?
Oct 11, 2013 at 11:04 AM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
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.
Oct 11, 2013 at 1:24 PM
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