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03-13-2009, 04:53 PM
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#1 |
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You want it there when???
Join Date: Oct 2006
Location: Lewisburg Ky
Posts: 393
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Rough Running
I have an 86 SWB with a 75-80 model 400 SB in it. When i park it for 2-3 days it will miss and run rough for about 2 minutes and it will smooth out.But it is getting worse and I"m starting to lose some water and I have a feeling it is a blown head gasket and it will puff a little white smoke every once and a while. And I have a little water coming out of the tail pipe am I on the right path? any suggestions?
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1986 Silverado Flatbed 400 SB with 350 turbo 1997 Ford Explorer with 302 mydrive to work ride 1978 Gmc Midas RV 21ft with 46,000 actual miles 2003 Chevy Avalanche 5.3 327 and Tweety Bird Yellow Big Sandy Survivor 09 Trucks in the Blue Grass Survivor 09 TNCTC Streetcruzin |
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03-13-2009, 04:56 PM
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#2 |
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Registered User
Join Date: Jan 2009
Location: Staten Island, NY
Posts: 109
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Re: Rough Running
Yes, it sounds as if you are on the right track!!! Good luck!
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03-13-2009, 05:01 PM
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#3 |
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You want it there when???
Join Date: Oct 2006
Location: Lewisburg Ky
Posts: 393
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Re: Rough Running
That was what I was thinking
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1986 Silverado Flatbed 400 SB with 350 turbo 1997 Ford Explorer with 302 mydrive to work ride 1978 Gmc Midas RV 21ft with 46,000 actual miles 2003 Chevy Avalanche 5.3 327 and Tweety Bird Yellow Big Sandy Survivor 09 Trucks in the Blue Grass Survivor 09 TNCTC Streetcruzin |
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03-13-2009, 07:46 PM
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#4 |
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Cheyenne Super
Join Date: Nov 2008
Location: Dallas Texas
Posts: 545
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Re: Rough Running
Check your plugs, they will tell you if you're getting water in a cyl, but you
might find that one is oil fouled and doesn't fire til it is hot. Any manual will have the "sparkplugs with different problems" picture. |
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03-13-2009, 10:06 PM
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#5 |
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You want it there when???
Join Date: Oct 2006
Location: Lewisburg Ky
Posts: 393
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Re: Rough Running
Ok Thanks I think it is on the right side I am goin to change the plugs tommorrow
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1986 Silverado Flatbed 400 SB with 350 turbo 1997 Ford Explorer with 302 mydrive to work ride 1978 Gmc Midas RV 21ft with 46,000 actual miles 2003 Chevy Avalanche 5.3 327 and Tweety Bird Yellow Big Sandy Survivor 09 Trucks in the Blue Grass Survivor 09 TNCTC Streetcruzin Last edited by Curly86; 03-13-2009 at 10:08 PM. Reason: did not finsh the message |
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03-14-2009, 12:37 AM
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#6 | |
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Cheyenne Super
Join Date: Nov 2008
Location: Dallas Texas
Posts: 545
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Re: Rough Running
Quote:
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03-15-2009, 08:26 AM
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#7 |
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You want it there when???
Join Date: Oct 2006
Location: Lewisburg Ky
Posts: 393
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Re: Rough Running
ok thanks guys
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1986 Silverado Flatbed 400 SB with 350 turbo 1997 Ford Explorer with 302 mydrive to work ride 1978 Gmc Midas RV 21ft with 46,000 actual miles 2003 Chevy Avalanche 5.3 327 and Tweety Bird Yellow Big Sandy Survivor 09 Trucks in the Blue Grass Survivor 09 TNCTC Streetcruzin |
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03-15-2009, 08:44 AM
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#8 |
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dang its hot
Join Date: Nov 2006
Location: frankfort kentucky
Posts: 1,349
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Re: Rough Running
400's are notorious for head gasket failures. siamese bore holes, steam port holes between cylinders. Pay attention to the gasket when you tear down and where it has failed, check that head and the block for metal erosion
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03-21-2009, 09:03 AM
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#9 |
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You want it there when???
Join Date: Oct 2006
Location: Lewisburg Ky
Posts: 393
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Re: Rough Running
ok will do thanks
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1986 Silverado Flatbed 400 SB with 350 turbo 1997 Ford Explorer with 302 mydrive to work ride 1978 Gmc Midas RV 21ft with 46,000 actual miles 2003 Chevy Avalanche 5.3 327 and Tweety Bird Yellow Big Sandy Survivor 09 Trucks in the Blue Grass Survivor 09 TNCTC Streetcruzin |
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