several problems...one solution?
Thread Starter
Instructor
Joined: Dec 2008
Posts: 116
Likes: 0
several problems...one solution?
Here are the problems I am facing:
1.) Engine starts but when I take my foot off the gas it dies.
2.) If I pump the gas pedal to keep it running it will sometimes backfire through the carb.
3.) On the occassion that it does idle, when I rev it up there is popping in the exhaust
4.) lights will not pop up
5.) no brakes...pedal goes all the way to the floor.
With all of these symptoms I am thinking there must be a bad vacuum leak somewhere. What do you all think?
1.) Engine starts but when I take my foot off the gas it dies.
2.) If I pump the gas pedal to keep it running it will sometimes backfire through the carb.
3.) On the occassion that it does idle, when I rev it up there is popping in the exhaust
4.) lights will not pop up
5.) no brakes...pedal goes all the way to the floor.
With all of these symptoms I am thinking there must be a bad vacuum leak somewhere. What do you all think?
Melting Slicks
Joined: Dec 2006
Posts: 2,669
Likes: 3
From: Kingston Ontario
Not related enough to be one solution!
Attack one problem at a time. First three could be considered common. ie:fuel, carb, timing, etc...
Lights and brakes are separate issues.
Lots of information on all these topics through the "search" function. Don't hesitate to provide what troubleshooting you have attempted and ask for further input.
Attack one problem at a time. First three could be considered common. ie:fuel, carb, timing, etc...
Lights and brakes are separate issues.
Lots of information on all these topics through the "search" function. Don't hesitate to provide what troubleshooting you have attempted and ask for further input.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Sounds like your leaning out. When you lean out the Air Fuel Mixture (due to a fuel issue) you throttle needs to be OPEN further than normal. The further the throttle is open, the LESS vacuum you have.
Check fuel pressure, fuel supply, Carb fuel bowl level etc...........
Yes you could also have massive vacuum leak but,,,ones that big are pretty apparent.
BC
Check fuel pressure, fuel supply, Carb fuel bowl level etc...........
Yes you could also have massive vacuum leak but,,,ones that big are pretty apparent.
BC
