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02-02-2013, 08:01 PM
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#1 |
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Registered User
Join Date: Mar 2012
Location: Spartanburg S.C.
Posts: 21
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engine skip/lugging help
ok so i recently did a rework of my exhaust with headers true duals etc. but after i finnished my truck lugs at low rpms and seems to be skipping. doesnt have a problem at idle or after i downshift. its mostly at about 40 mph when im cruisin in 4th. what should i look out for? how easy is it to mess up the spark plug wires? cuz its possible that the wires have fried against the headers but im not sure.
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2 inch add a leaf, bilstein 5100 shocks, 33" hankook dynapro mt's, flowtech headers true duals and terminator mufflers, 35w and 55w 6k hid headlights, 35w 3k foglights, complete led conversion, 2 kicker cvt 12's, soundstream rub5.800 amp, soundstream speakers 
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02-03-2013, 01:50 AM
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#2 |
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Registered User
Join Date: Mar 2012
Location: Spartanburg S.C.
Posts: 21
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Re: engine skip/lugging help
anyone?
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2 inch add a leaf, bilstein 5100 shocks, 33" hankook dynapro mt's, flowtech headers true duals and terminator mufflers, 35w and 55w 6k hid headlights, 35w 3k foglights, complete led conversion, 2 kicker cvt 12's, soundstream rub5.800 amp, soundstream speakers
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02-03-2013, 09:23 AM
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#3 |
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Registered User
Join Date: Mar 2012
Location: stafford springs ct
Posts: 149
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Re: engine skip/lugging help
most likely a wire isnt clipped on all the way, i would just swap them out for a new set though-i've seen a set of wires that looked fine cause a missfire. good luck.
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1977 srw cc lb 396/700r/4:11's/6'' bds lift/ 35's. sold 1986 suburban 350/700r/3:73's 31's: parted out. 1980 silverado swb 5.3/700r/ 2'' drop/ daily driver. sold 1985 c10 long bed 5.3/700r/2'' drop/17" wheels/ daily driver. sold 1970 c10 long bed-new project! getting ready for the 6.0 |
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02-03-2013, 11:49 PM
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#4 |
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Registered User
Join Date: Mar 2012
Location: Spartanburg S.C.
Posts: 21
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Re: engine skip/lugging help
i guess ill do a comprehensive tune up and see how it goes....
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2 inch add a leaf, bilstein 5100 shocks, 33" hankook dynapro mt's, flowtech headers true duals and terminator mufflers, 35w and 55w 6k hid headlights, 35w 3k foglights, complete led conversion, 2 kicker cvt 12's, soundstream rub5.800 amp, soundstream speakers
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02-04-2013, 12:23 AM
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#5 |
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Registered User
Join Date: Mar 2009
Location: TN
Posts: 410
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Re: engine skip/lugging help
If it was a plug wire it should be running rougher at idle. You can let the truck idle and pull one plug wire at a time from the cap and see if the idle gets rougher. If it does, then that wire was working, if it does nothing, then that wire was the problem.
Have you touched the timing or any vacuum hoses?
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'69 Dodge Charger R/T 440, 727, 3.55 Sure Grip '68 Plymouth Road Runner 383, 727, 3.23 Sure Grip '89 Dodge Diplomat ex cop car 408, 727, 3.55 Sure Grip '77 Dodge Monaco ex cop car 440, 727, 2.71 '79 Dodge 'Lil Red Express pickup 360, 727, 3.55 Sure Grip '12 Dodge Challenger SRT8 392, M6, 3.92 '85 Chevrolet C-10 SWB 2wd 305, TH350, 2.73 |
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02-04-2013, 11:34 AM
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#6 | |
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Registered User
Join Date: Mar 2012
Location: Spartanburg S.C.
Posts: 21
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Re: engine skip/lugging help
Quote:
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2 inch add a leaf, bilstein 5100 shocks, 33" hankook dynapro mt's, flowtech headers true duals and terminator mufflers, 35w and 55w 6k hid headlights, 35w 3k foglights, complete led conversion, 2 kicker cvt 12's, soundstream rub5.800 amp, soundstream speakers
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02-04-2013, 12:20 PM
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#7 |
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Registered User
Join Date: Jul 2007
Location: Ontario Canada
Posts: 1,006
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Re: engine skip/lugging help
Double check your firing order just to make sure you didn't slip a wire on the wrong plug...sometimes it is very easy to do.
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 1985 C10 2004 Avalanche |
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02-04-2013, 03:46 PM
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#8 | |
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Registered User
Join Date: Mar 2012
Location: Spartanburg S.C.
Posts: 21
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Re: engine skip/lugging help
Quote:
__________________
2 inch add a leaf, bilstein 5100 shocks, 33" hankook dynapro mt's, flowtech headers true duals and terminator mufflers, 35w and 55w 6k hid headlights, 35w 3k foglights, complete led conversion, 2 kicker cvt 12's, soundstream rub5.800 amp, soundstream speakers
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02-04-2013, 04:43 PM
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#9 |
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78K & 79C Jimmys
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
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Re: engine skip/lugging help
check the order
vacume advance could be sticking may wana check the actuall metal tubes sticking out of the carb some loosen and can pull out a bit changing hoses and i think you may need to be still advanced i think I'm up over 10 now...i just changed my distributer runs better
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John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350 |
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02-05-2013, 01:42 AM
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#10 |
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Registered User
Join Date: Jan 2013
Location: Pennsylvania
Posts: 99
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Re: engine skip/lugging help
Spray a little penetrant on the vacuum lines to see if there leaking the idle will change if it is, I would also recheck your firing order just incase 2 got swapped.
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1967 gmc 4x4 factory air factory buckets 1985 gmc high sierra 2500 4x4 400 1972 ford f250 4x4 390.Tomorrow is the most important thing in life. Comes into us very clean. It's perfect when it arrives and puts itself in our hands. It hopes we've learned something from yesterday. John Wayne |
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02-05-2013, 12:00 PM
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#11 | |
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Registered User
Join Date: Mar 2012
Location: Spartanburg S.C.
Posts: 21
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Re: engine skip/lugging help
Quote:
__________________
2 inch add a leaf, bilstein 5100 shocks, 33" hankook dynapro mt's, flowtech headers true duals and terminator mufflers, 35w and 55w 6k hid headlights, 35w 3k foglights, complete led conversion, 2 kicker cvt 12's, soundstream rub5.800 amp, soundstream speakers
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