72 vette with proble3ms
Thread Starter
Instructor
Joined: Apr 2009
Posts: 108
Likes: 0
From: Mandeville Louisiana
72 vette with proble3ms
car has been running great and today it started to sputter and i had to pump the pedal to keep it goinhg. what ya think? fuel pump or filter? car has onlt had around 300 miles in 4 years with 200 being put on in last two weeks.
help is appreciated
help is appreciated
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
"Sounds" like it was starving for some reason but if the fuel pump was going bad or the filter was plugging up I doubt the accelerator pump could fix that(it gets its fuel from the pump also). Check for vacuum leaks first.
Le Mans Master
Joined: May 2006
Posts: 7,708
Likes: 266
From: indy indiana
I myself would test the fuel pressure first AND replace the fuel filter while I was under there fooling around. If pressure is ok, suspect carb problems like stuck or gummy floats/needle valves.Also suspect trash in tank...if fuel filter seems unfit. Simply blowing thru the filter will tell you if its plugged,shouldnt be any resistance at all.Keep in mind, after 3 years I would start to question the fuel being any good,or its state anyway.A cheap bubba test is to ...never mind, is dangerous.good luck with this. Start at the fuel inlet fitting at the carb, working your way towards the tank.
Safety Car
Joined: Apr 2000
Posts: 3,802
Likes: 61
From: Wichita KS
Don't know if you are running with the factory idle stop solenoid but if that wire falls off you will have that sort of problem.
Also check your plug wires for cracks or tears in the insulation and that they are completely attached to the spark plugs and distributor cap.
Make sure you don't have an intermittent ground issue with the positive coil wire (not as likely as you'd probably see smoke).
cc
Also check your plug wires for cracks or tears in the insulation and that they are completely attached to the spark plugs and distributor cap.
Make sure you don't have an intermittent ground issue with the positive coil wire (not as likely as you'd probably see smoke).
cc
Thread Starter
Instructor
Joined: Apr 2009
Posts: 108
Likes: 0
From: Mandeville Louisiana
Thanks guys. I ran a couple of premium through it and it ran awesome. Then all of a sudden. I will start from the carb and work my way back. Where is that factory idle stop solenoid wire you speak of?
Melting Slicks
Joined: Apr 2006
Posts: 2,084
Likes: 14
From: Airdrie Alberta
i had to pump the pedal to keep it goinhg
I ran a couple of premium through it and it ran awesome. Then all of a sudden
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
MAY also want to check for water in the gas.....common enough especially what with that ethanol crap that IS 1/2 water to start with and is hydroscopic as hell...absorb more.....
maybe to drain the tank, and check it in a clear water glass toward the end of the draining...water sinks to the bottom....
clean the tank then...tons of fun for a nice sunny afternoon getting a tan while doing .....
don't ask....
maybe to drain the tank, and check it in a clear water glass toward the end of the draining...water sinks to the bottom....
clean the tank then...tons of fun for a nice sunny afternoon getting a tan while doing .....
don't ask....
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Instructor
Joined: Apr 2006
Posts: 122
Likes: 0
From: Central CA
Make sure your carburator isn't loose. Something so simple saved me $500 on the buy price. When I bought my 71 it ran a little rough. After I got it home I did a little checking with some carb cleaner and figured it out.