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#1
03-23-2012, 09:32 PM
Hummer Veteran
Join Date: Sep 2006
Location: visalia ca./ Wingate N.C.
Posts: 89
kinda cutting out a 45 mph for a second
Having a problem and doesn't show up on codes. going down the road and all of a sudden it cuts out for a second then drives fine . put new plugs in cap rotor wires . Didn't do nothing still does it . Its a 2003 H2 Does it more when down to 1/4 tank but today did it with 3/4 tank . But it doesn't do it all the time ,thats what so weird . thinking maybe the fuel pump and i did change the filter too! No difference ! Thanks in advance !! jeff
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#2
03-23-2012, 10:39 PM
Hummer Veteran
Join Date: Jun 2009
Location: Texas
Posts: 122
Re: kinda cutting out a 45 mph for a second
This made me think of one of my Harleys that would start running rough and cut out when the fuel would get below 3/4. Full tank ran fine, down below 3/4 ran terrible. It was driving me nuts. The Harley shop found that there was a hole in the fuel line in the fuel tank and when it got below 3/4 it was't getting the fuel it needed.
#4
03-24-2012, 12:45 AM
Hummer Veteran
Join Date: Sep 2006
Location: visalia ca./ Wingate N.C.
Posts: 89
Re: kinda cutting out a 45 mph for a second
Sorry meant wires on coils ! Use to the old hotrods !!!
__________________
Put on turn signal count to ten and turn SPLAT!!Goes another tree hugger
03 H2 Sunburst orange
04 Corvette Silver(wifey's)
32 roadster Viperblue (SOLD)
32 3 window coupe COPPER ( almost done )
32 3 Window Coupe full fenders
32 Roadster
62 Nova SS
69 Chev p/u 427
72 Chev p/u ORANGE
34 Phanton (underconstruction)
34 5 window coupe Teal (SOLD)
95 Harley geiser glide red
74 Sportster {wifey's)Candy red w/flames
96 Harley Turbo charged
#5
03-24-2012, 12:54 AM
Hummer Expert
Join Date: Dec 2007
Posts: 705
Re: kinda cutting out a 45 mph for a second
Quote:
Originally Posted by HUMTECH
Well if you changed the cap and rotor its not a 6.0l
I was thinking what in the hell kind of line of **** is this guy trying to feed us....LOL
You actually catching the tach drop, or you just noticing by the seat of your pants a momentary loss of power? Flat/level ground when this happens?
#6
03-24-2012, 03:11 AM
Hummer Authority
Join Date: Sep 2003
Location: Canada
Posts: 1,251
Re: kinda cutting out a 45 mph for a second
Its not the tcc locking and getting a little bump feeling is it?
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1987 Jeep YJ 403hp sbc 653hp on NOS
1998 Chev Z71
2007 Chev Trailblazer SS
#7
03-24-2012, 03:16 AM
Hummer Authority
Join Date: Sep 2003
Location: Canada
Posts: 1,251
Re: kinda cutting out a 45 mph for a second
One thing that i can think of is check pin grip tension at crank sensor connector, not likely if at a certain speed but who knows. Normally for something like that i would install a data recorder and instruct the customer to hit the button when they feel the problem it would then record data to be looked at by the tech.
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1987 Jeep YJ 403hp sbc 653hp on NOS
1998 Chev Z71
2007 Chev Trailblazer SS
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