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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.
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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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