06 cobalt fuel problems help

85

Asked by May 10, 2013 at 11:46 PM about the 2006 Chevrolet Cobalt LS

Question type: Maintenance & Repair

my 2006 cobalt when you put gas in it you have to rev the engine and hurry throw it into
gear to keep it from dieing but after a few mins its fine till you fill it up again i just want to
find out how to fix this problem

28 Answers

25,395

are you leaving the engine running when your filling it?

2 out of 2 people think this is helpful.

have you got the OBD-II diagnostic trouble codes...go and have them read at an autoparts store for free or buy your own diagostic tool. there is a guide (online too) what these trouble codes mean if not on the device itself...that would tell us where to begin...would guess an ambient air temperature sensor and coolant sensor need to tell the ECM the prevailing conditons...also the TPS could be worn giving contradictory instructions to the fuel system....there is TOO much to be guessing at here....if you yearn for immediate satisfaction you could test each component for vacuum leakage to the vacuum hose, electrical resistance and passivity to ground~

1 out of 1 people think this is helpful.

old and cracking vacuum lines can leak...replace them with silicone rubber ones~

85

no i dont leave it running i shut it off and i just went a little bit ago and the codes are p0496 and p0206

1 out of 1 people think this is helpful.

You know the evaporative canister gets flooded. drowns and the computer quits...all because you didn't stop at the first click...normally a check engine light is illuminated until the canister is run dry of it~

1 out of 1 people think this is helpful.
85

not p0206 p 0106 sorry

85

well i have not filled it all the way up in a year i put maybe max 20.00 in it to bring it to half a tank so i never over fill it

1 out of 1 people think this is helpful.

You know the evaporative canister gets flooded. drowns and the computer quits...all because you didn't stop at the first click...normally a check engine light is illuminated until the canister is run dry of it~ ...okay purge valve and ignition #6 ... as I stated the canister is unhappy~

1 out of 1 people think this is helpful.
Best Answer
85

if anyone knows of a place here in texas that does fake inspections please let me know cause the inspection is due this month on the car

You got it my friend, jraupp~

85

and where can i find the ignition #6 and is it easy to fix the purge valve

25,395

P0496 is evap system flow during non purge. P0106 is map sensor performance

MAP sensor and Limp mode #6...for what it's worth~

1 out of 1 people think this is helpful.
25,395

Ignition #6 judge? Its a four cylinder.

85

what limp mode #6

25,395

its not your canister but you can take judges advice over mine if you would like.

85

well judge did say the exact same thing someone else told me today word for word

25,395

the canister isnt the part that allows fuel vapor flow into the intake manifold. the purge valve does that and p0496 is a code for flow when its not being commanded.

2 out of 2 people think this is helpful.
85

but isnt the purge valve inside the canister cause someone told me that its part of the canister and if im going to replace the valve might as well replace the canister

25,395

reading the pinpoint test on a 2.0L engine which im not sure what engine you have. Anyways it lists checking the pruge valve and the fuel tank pressure sensor. the evap canister is not in the checks. it does not cause this issue.

1 out of 1 people think this is helpful.
85

2.2

25,395

the pruge valve is connected either to the engine or in the engine bay with a hose going to the intake manifold.

25,395

here is the location of the valve

4 out of 4 people think this is helpful.
85

is it a easy fix could someone that dont really work on cars able to do this or should i take it to a dealer and pay alot of money to get it fixed

25,395

it would be a easy fix once you know what the exact problem is. you need a scan tool to diagnose it correctly. you could take it somehwhere and pay the diag. fee and get it diagnosed correctly and then put the part on yourself it would be cheaper than having the dealer diag. and install.

1 out of 1 people think this is helpful.
25,395

Would appreciate if things that were actually helpful to be marked helpful.

1 out of 1 people think this is helpful.
25,395

its a good thing you threw out the best answer mark on a answer that doesnt even make sense hurray!

1 out of 1 people think this is helpful.
15

Since this only happens when you refuel (didn't say fill cause you said you don't) did you ever think about having your tank checked for a FOREIGN object, like dirt or water. when you put gas in the tank, it stirs up what is in there and after driving a while it will then settle back down to the bottom Of course remember one thing, gas is lighter than water and will float on top while gas will go to the bottom, WHICH ironically is where the pickup valve is for the gas to get from the tank to the engine. Does not cost much to get a tester or even try a can of "HEET". If it helps there's your problem bud. Worst thing that could happen is to take the plug out of the bottom and flush the tank out. Don''t even have to take it off the vehicle

1 out of 1 people think this is helpful.

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