2000 Chevy Silverado Gas tank is crushing

Tiny
STUART HUTCHISON
  • MEMBER
  • 2000 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 230,000 MILES
I have replaced the tank after a leak started near the seam. After about a month the new tank started leaking. I took it to a mechanic and he said the tank was crushed and asumed it had to much vaccum, but wasn't exactley sure what to do to fix the poblem.
Sunday, August 1st, 2010 AT 10:00 AM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hi Stuart Hutchison, Welcome to 2carpros and TY for the donation

There's two things that will cause the fuel tank to collasped/deformed/crushed is a wrong gas cap and the vacuum relief valve
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Sunday, August 1st, 2010 AT 5:37 PM
Tiny
STUART HUTCHISON
  • MEMBER
  • 3 POSTS
Where is the vacuum relief valve located and how does it work
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Tuesday, August 3rd, 2010 AT 5:09 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Scan for codes, if the vent valve is stuck a code should be set. Also check the fuses under the hood, there are fuses for EVAP purge and vent solenoids. Testing these requires a GM Tech II scan tool to activate the solenoids to test them..


https://www.2carpros.com/forum/automotive_pictures/62217_Evap_Locations_1.jpg

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Friday, August 6th, 2010 AT 10:01 PM

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