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03-22-2008, 04:30 PM
| #1 |
| Junior Member Join Date: Mar 2008
Posts: 2
 |  Power fading in and out I have a 79" half ton 350. The problem started a couple of days ago, it acted like it was running out of gas, I put gas in it and it was fine. Turns out gas was not the problem. Now it will barely run, it is fine for a couple of seconds then acts like it is bogging out heavily, then it comes back for a couple of seconds, and so forth and so on. Eventualy it will die with what sounds like a small backfire. It will then start right back up and repeat the process. I can't get it over about 25 mph. Can anyone help me? Last edited by grabon77; 03-22-2008 at 04:44 PM. |
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03-22-2008, 07:32 PM
| #2 |
| mod-o-tator  Join Date: Feb 2006 Location: michigan
Posts: 4,494
 | i would check for vacum leaks, spark and fuel pressure to start out with. do you have a SES light on?
__________________ member map add yourself alldatadiy why is it, when i push one for english, i still can't understand the person on the other end? |
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03-23-2008, 02:03 PM
| #3 |
| Senior Member Join Date: Mar 2008 Location: N.Y.
Posts: 1,442
| didnt 79 still have the paper filter in the carb? I'd start there, especially if you have to crank it a bit to restart. |
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03-23-2008, 03:36 PM
| #4 |
| Junior Member Join Date: Mar 2008
Posts: 2
| there is no ses light on. It is an after market carb but i don't have to crank it to restart, it fires right back up. Someone else suggested that it might be the weighted springs under the distributor? I will check vacuum leaks and fuel pressure to start with. Thank you for the replys, any other ideas would be appreciated. |
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03-23-2008, 05:36 PM
| #5 |
| Banned Join Date: Mar 2008 Location: levittown pa
Posts: 2,197
| sounds like its arcing under the dist cap. i would check your rotor. if its no that then check your fuel pump. if you dont have an electric fuel pump i would get one |
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03-24-2008, 01:52 AM
| #6 |
| Senior Member Join Date: Sep 2007 Location: MN
Posts: 193
| if you have dual tanks your switching valve is bad |
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