2000 GTI fuel problems

[Dan Whitaker]

Just purchased 2000 GTI test rode it at the lake before purchase ran perfect. Went to the lake last weekend ran great for 3 hours then it acted like it was running out of gas. I have rebuilt the carb replaced all of the grey fuel lines put a new fuel selecter and a new baffle in the tank it still is not getting gas through the carb. I have gas at the input fuel line to the carb nothing getting through the carb I have verified the pop off and it seems to be correct. Any suggestions?

 

[LouDoo]

Only a couple of things come to mind. Check the gas tank vent, and check to see if the engine is providing pressure and suction at the pulse line connection.

Lou

 

[Dan Whitaker]

I dont feel the suction at the pulse line I was told as long as I have good compression I would have suction.

 

[Dan Whitaker]

First let me say thanks for your reply. Already checked the vent the check valve it is working corrrectly. The pulse seems to be weak I cant find any specific information on how much vacum and pressue should be measured. I have a vacum and fuel pump tester I inserted it in the pulse line and turned the engine over I was measuring less than 1lb in either. How much should I see?

 

[LouDoo]

To be honest I'm not sure the vacuum should be, but I would guess more than 1 lb., what's your engine compression. Check it cold, spark plugs out, spark plug caps grounded, throttle open.

Lou

 

[Dan Whitaker]

One cylinder is 150 the other is 135.