Question about 1997 Chevrolet Astro
Posted by Anonymous on
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Posted on Jan 02, 2017
That is an EVAP code. its a vent control code. you can manually test it by powering it up if you know where its at. i cant remember exaclty where its at off the top of my head but its only 2 wires. using a volt meter you want to make sure power is getting to it, but you cannot activate it without dealer scan tool.hmmm if you can figure out which is ground and power when you give it 12 volts it should click. meaning your vent solenoid works and you have wiring problems or its leaking.
EVAP problems are hard to finde with out scanners. you can change the vent solenoid and hope it fixes it. but a code points you to the direction of a problem. hopefull its not wiring problems. in the northern states with snow. ice can pull out wires and also get clogged in the vent solenoid and lock it up. its either wiring or bad or a leaking solenoid. check condition of wires. if they look good try a vent soleniod.
if that doesnt fix it after a engine light reset and 2 weeks or so. then goto dealer. you need to reset it after repair. light will not go off on its own.GOOD LUCK
Posted on Apr 29, 2009
Well come to the GM World. The filler tube to the gas tank is small and i find it to be the same on my Jimmy and my wife's Montana.
When filling, try starting off slow. Then gradually pull on the trigger more, as you fill the tank with gas. The fluid going in back's up with the air coming out. When you start off slow then pull on the trigger more you give the gas going in and air coming out time to create a path through that they can don't really interfere much with one another.
After a while you'll find a certain way (eather tilted to the left or right) to place the Gas pump nozzle in the filler tube to keep it from cutting off on you.
Good luck and hope this helps. If there is anything wrong with the EVAP. Charcoal canister, vacuum tubes or valve, your Service Engine light would go on. The ECM monitors all of that and would save a DTC in the ECM's memory to be retrieved by a technition's scanner.
Posted on May 09, 2009
You are right. You need the vent valve not the purge valve. The vent valve is a dealer item. Also this is a common problem and GM has released a bulletin on this that involves moving the location of the valve and running some new lines. It comes as a kit from GM, and it costs about a 100 bucks.
Posted on Dec 02, 2010
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