6.2 pump on a 6.5 needs help
I have a 1998 gmc 3500HD and after a few years of pdm and other electrical problems causing my truck to be unreliable, I want to convert my truck to a mechanical pump. What problems will I encounter and what parts will I need? I have already located a 6.2 pump that will be rebuilt to go on a 6.5. It looks as if the thermostat housing will be in the way of the throttle cable. If anyone has done a similar conversion the help would be appreciated.
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it is possible and its not too hard but i dont know the exact details. there is a book out there from a guy that did this swap in the 90's but i dont know the title. i do know you need to convert the accerlator pedal from electronic to mechanical linkage. also if you have a manual its a lot easier to do the swap compared to if you got the 4L80E auto tranny.
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yes i have a manual trans. that book would be great. just trying to get everything together to make the swap and trying to piece it together and avoid the pricey "kits"
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I have made this conversion on my 96 3500 crew cab no 1 you must aquire inj lines
off the 6.2 the ones on the electronic pump won"t work. Next you must put an after market cruise control unit on. The linkige I built not to complicated just remember the trans if auto shifts off the reostat on the accl pedal so you must be able to adjust it thats is why i used a rod instead of cable. |
I'm curious about this as well, is the '94 in my sig a "drive by wire" as well?
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Originally Posted by dragogt
(Post 383186)
I'm curious about this as well, is the '94 in my sig a "drive by wire" as well?
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Im not sure that the 94 had the electronic pump I took 23 wires off the system and replaced them with 2 wires just made things a lot simpler except the timing issues I
am having trying to find a timing light. |
yes the 94 was the first year for the electronic 6.5. 93 was the last year for the mehanical 6.5.
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Originally Posted by Woody35
(Post 383332)
yup it is. only mechanical 6.5s got linkages for accerlator pedal
Originally Posted by red
(Post 383492)
Im not sure that the 94 had the electronic pump I took 23 wires off the system and replaced them with 2 wires just made things a lot simpler except the timing issues I
am having trying to find a timing light.
Originally Posted by Woody35
(Post 383530)
yes the 94 was the first year for the electronic 6.5. 93 was the last year for the mehanical 6.5.
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I removed allthe wiring to the electronic pump except 1 which fed the fuel sel
I added 1 wire to the pump cold start advance so far haven't really needed it here in Tenn |
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