Tach don't work right
September 4th, 2010, 2:21 AM
#1
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Tach don't work right
Hi All,
I just bought a 1992 C1500 SWB 2 wd pickup.
my Problem is the previous owner swapped out the 4.3 TBI V6 & installed
a 5.7 carburated V8 & the factory tach does not read right.
Is there any way to fix this short of replacing the tach with a V8 unit?
any help on this would be appreciated.
Thanks
Tom
I just bought a 1992 C1500 SWB 2 wd pickup.
my Problem is the previous owner swapped out the 4.3 TBI V6 & installed
a 5.7 carburated V8 & the factory tach does not read right.
Is there any way to fix this short of replacing the tach with a V8 unit?
any help on this would be appreciated.
Thanks
Tom
September 5th, 2010, 3:01 AM
#3
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No I don't know when it started, it was like that when I bought the truck.
I knew that the gearing & tire size (both are stock) affected the speedometer
but not the tach.
The tach is hooked right to the distributor.
Tom
I knew that the gearing & tire size (both are stock) affected the speedometer
but not the tach.
The tach is hooked right to the distributor.
Tom
September 5th, 2010, 10:53 AM
#4
CF Pro Member
look for a green wire that is part of the distributor cluster, btw did the person instal an hei dizzy, or stick with the stock one? if hei, once u find the green wire plug it in beside the lead power wire, if the stock dizzy, then idk what
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