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11-06-2005, 11:25 AM
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#1 |
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Registered User
Join Date: Jun 2002
Location: Camas, Wa
Posts: 58
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what the ???
have a 71 wuth the 250 6cyl
put a new carb, new manifold gaskets on. It idles fine, checked timiing, float level, vacuum leaks all good. Starts out in 2nd fine in but when I get into 3rd or 4th the engine stumbles and "bucks" then dies. Start in 2nd again and runs fine. Baffled, please help
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71 c-10 6cyl  68 Camaro (wifes) 65 dodge town wagon (wanna buy it?) 97 crew cab f350 psd |
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11-06-2005, 11:31 AM
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#2 |
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Account Suspended
Join Date: Feb 2004
Posts: 3,051
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Re: what the ???
How's the timing? Sounds like an advance issue.
Or you have a fuel issue where it's not getting enough fuel under load. |
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11-06-2005, 12:03 PM
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#3 |
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Registered User
Join Date: Jun 2002
Location: Camas, Wa
Posts: 58
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Re: what the ???
checked the timing 4 btdc,
think it might be the cap and rotor. I took it off and looks pretty boogered in there will have to wait til stores open to get cap rotor and points i just bought the truck. plug wires are new so I ASSumed the cap and rotor were good. Better to not assume
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71 c-10 6cyl 68 Camaro (wifes) 65 dodge town wagon (wanna buy it?) 97 crew cab f350 psd Last edited by kpf; 11-06-2005 at 12:04 PM. |
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11-06-2005, 12:06 PM
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#4 |
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Car O'Holic
Join Date: Jan 2005
Location: Austin, Tx.
Posts: 692
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Re: what the ???
haha never assume it only makes and ass out of u and me but I think it sounds like a fuel issue but heck what do I know
Last edited by Striker169; 11-06-2005 at 12:07 PM. |
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11-06-2005, 12:25 PM
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#5 |
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TOTY 2006
 
Join Date: Dec 1999
Location: Magalia CA USA
Posts: 2,270
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Re: what the ???
How are the spark plug wires? if they are old, change them. When the engine is running in neutral, there is no load on the wires, meaning it runs good, and when you rev it up, it still sounds good, then when you try to drive, the load increases and the sparks start jumping from the wires to other things instead of the spark plug.
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11-07-2005, 03:25 AM
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#6 |
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Out of the carpool lane.
Join Date: Jan 2000
Location: Clark Co, WA
Posts: 5,673
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Re: what the ???
Hi there Kpf, I recently came back on the board after about a year's absence. Welcome! My truck is torn apart but I've got a 250 in mine also and might be able to help if we can't solve it on the board. Hopefully you've figured it out by now.
Btw, nice taste in Chevy's! 
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1968 C-10 SWB, 5.7 Vortec/700R4/3.73 posi, Torch Red 1968 Camaro, 250/Powerglide, all original (No, I'm not gonna drop a 350 in it!...Jeez!) 2000 Honda VFR in the faster yellow! 2008 Husqvarna TE-610 1967 C-10 SWB 'Six Appeal'-Gone but not forgotten... |
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