For you C4 guys

[Taurus]

That think a C5 is too hard to work on compared to a C4. I had the dreaded Check Engine Light come on today. Without help from any diagnostic equipment or dealer techs, I fixed it myself. I put that gas cap back on all by myself.

Seems you can't drive the thing with the gas cap off, go figure.

[C4fan]

Ah yes, the gas cap, they can be finicky sometimes. You just can't stick a rag in them when you loose the cap anymore.

[Taurus]

At least my air brake wasn't deployed as well

[WW7]

At least you figured out the gas cap was the problem..Most C5 owners would have just called AAA to come tow the car to the nearest dealership.Then the dealership would have charged them $300.00 to run diagnostics until they figured out it was the gas cap..then they would not want to take a chance on the old gas cap and would install a new one at $60.00 plus $55.00 Labor. So, according to my calculations you save yourself $415.00........NICE.....WW

[Wathen1955]

Would this apply to a C4 also (check engine light comes on)?

[Taurus]

Originally Posted by WW7

At least you figured out the gas cap was the problem..Most C5 owners would have just called AAA to come tow the car to the nearest dealership.Then the dealership would have charged them $300.00 to run diagnostics until they figured out it was the gas cap..then they would not want to take a chance on the old gas cap and would install a new one at $60.00 plus $55.00 Labor. So, according to my calculations you save yourself $415.00........NICE.....WW

That was my next option

[mike100]

Originally Posted by Wathen1955

Would this apply to a C4 also (check engine light comes on)?

Nope...only the OBD2 cars have a self-check for evap function (tank sealed tight to hold in vapors). everytime you run the car, it pressurizes the tank to 1 psi and checks for a pressure drop/leak. Evap emissions are important, but early obd2 cars always choked on that test when the cap was not on. new cars don't set a permanent light for that if the user screws on the cap the next time the car runs. the newest cars don't even have caps anymore-self sealing nozzle inlet.


only a 96 is obd2-that C4 might have it.

[PLRX]

[Taurus]

Originally Posted by PLRX

Very nice as usual, but what does this have to do with my awesome mechanic skills

[Sweet 90]

Originally Posted by Taurus

Very nice as usual, but what does this have to do with my awesome mechanic skills

Admit it Jon, you had Hokie come and fix it for you

[Taurus]

Originally Posted by Sweet 90

Admit it Jon, you had Hokie come and fix it for you

He tried but he tought it was the turbo..............................

[Vette Jockey]

Originally Posted by Taurus

Very nice as usual, but what does this have to do with my awesome mechanic skills

[RedLS1GTO]

Originally Posted by WW7

Then the dealership would have charged them $300.00 to run diagnostics...

At least the diagnostic procedure for a C5 doesn't list a paperclip as a required tool.

[RetiredSFC 97]

Was it torqued properly?

[RetiredSFC 97]

Originally Posted by RedLS1GTO

At least the diagnostic procedure for a C5 doesn't list a paperclip as a required tool.

Never understood why people use a paperclip. the reader is only 25 bucks and much simpler to use.

[Taurus]

Originally Posted by RetiredSFC 97

Was it torqued properly?

It is now, I used my Mac Tools gas cap torque wrench to specs. No more light.

[Sweet 90]

Originally Posted by Taurus

It is now, I used my Mac Tools gas cap torque wrench to specs. No more light.

Is that the Chinese model Jon?

[C4fan]

Originally Posted by Sweet 90

Is that the Chinese model Jon?

And god forbid if you had an extension on that torque wrench, no tellin what it would take to get that thing off.

[RedLS1GTO]

Originally Posted by RetiredSFC 97

Never understood why people use a paperclip. the reader is only 25 bucks and much simpler to use.

Because a paperclip is about $25 less and is just as easy to use.