Purge Valve - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Machh5 · 08-13-2020, 08:27 PM

For some time I've been having on and off hard starting stumble hesitation and other drivability problems that come and go. Dealer always says no trouble found and I got used driving around the trouble. Finally I got a check engine light and found the purge valve on the intake was stuck open. Changed it and car drives like it should again. Just posted this up so if you are experiencing similar trouble might try replacing the purge valve on the intake manifold before wasting 100's at the dealer just to be told nothing wrong.

'10CamaroDude · 08-14-2020, 12:26 AM

P0496 is a clear sign you need a solenoid. Or, remember to clip the feed line back
down on the vent line... My car had so many fittings that were not snapped back
down onto the nozzles, it reven wasn't funny. Even the intake hose to the TB was
loose, and allowing air in. ECU was hanging, not clipped in. Vacuum booster pump
line was broken and hidden under the rubber sleeve. Had a fuel leak, broken door
lock, bad rad cap, CAT codes... IT was a total nightmare...

fhrex · 08-15-2020, 08:55 PM

purge valve is a pretty common problem. Glad you got it solved.

Machh5 · 08-31-2020, 09:53 PM

Update: For the 1st time in 2 years the car no longer hesitates giving it light throttle. Works like a new car. Valve must have been bad for a very long time. I still can't understand why the dealer couldn't find it. I know you can see the vacuum in the line and pulse rate of the valve. Guess I'll have to find a different service dept, good luck with that! Joe blow down the street is 50 dollars cheaper per hr than the dealer and can't do any worse.

08-13-2020, 08:27 PM	#1
Machh5 Account Suspended Drives: Camaro Join Date: Jun 2020 Location: US Posts: 120	Purge Valve For some time I've been having on and off hard starting stumble hesitation and other drivability problems that come and go. Dealer always says no trouble found and I got used driving around the trouble. Finally I got a check engine light and found the purge valve on the intake was stuck open. Changed it and car drives like it should again. Just posted this up so if you are experiencing similar trouble might try replacing the purge valve on the intake manifold before wasting 100's at the dealer just to be told nothing wrong.

08-15-2020, 08:55 PM	#3
fhrex Drives: 2011 Camaro 2LT/RS Join Date: May 2015 Location: Farmville, Virginia Posts: 1,022 View My Garage	purge valve is a pretty common problem. Glad you got it solved. __________________

08-14-2020, 12:26 AM	#2
'10CamaroDude Account Suspended Drives: 2010 Camaro LS Join Date: Nov 2019 Location: Pgh Posts: 739 View My Garage	P0496 is a clear sign you need a solenoid. Or, remember to clip the feed line back down on the vent line... My car had so many fittings that were not snapped back down onto the nozzles, it reven wasn't funny. Even the intake hose to the TB was loose, and allowing air in. ECU was hanging, not clipped in. Vacuum booster pump line was broken and hidden under the rubber sleeve. Had a fuel leak, broken door lock, bad rad cap, CAT codes... IT was a total nightmare...

08-31-2020, 09:53 PM	#4
Machh5 Account Suspended Drives: Camaro Join Date: Jun 2020 Location: US Posts: 120	Update: For the 1st time in 2 years the car no longer hesitates giving it light throttle. Works like a new car. Valve must have been bad for a very long time. I still can't understand why the dealer couldn't find it. I know you can see the vacuum in the line and pulse rate of the valve. Guess I'll have to find a different service dept, good luck with that! Joe blow down the street is 50 dollars cheaper per hr than the dealer and can't do any worse.