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Old 07-20-2010, 01:08 AM   #1 (permalink)
4320Diesel
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Wiring In A Gas Tach Into a 1991 Suburban/Blazer Vacuum Pump

i did some searching and still cant find the darn wiring diagram. so i was wondering, does anyone have the wiring diagram on how to wire up a gas tach to a 1991 blazer/suburban vacuum pump speed sensor? when i replace my vacuum pump it comes with the darn drive anyways so im gonna order a 91 suburban one so i get the sensor so i can finally have me a tachometer.

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1985 GMC (The Brown Streak) Sierra Classic 1500 4WD With 6.2L V8 Diesel and 4speed NP833 trans with hurst shifter! , 4911 6.5 ip with 6.5 shortie injectors GM-3 turbo. Single plane J code intake from Turbonator (thanks guys!). 3" exhaust and 3" BBQ black stacks! Isspro Pyrometer, Trisco Boost and Engine Oil Temp Gauges.
1998 Dodge Ram 2500 Sport club cab short box 4WD 5 speed 12 Valve cummins. Brentbilt fuel plate. 300 horse motorhome injectors, boost elbow, timing bumped to 18* autometer boost and pyro, 500 horse valair clutch waiting to go in!
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your wrong brent, i'll think of a reason later

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brent can't do that, it would look factory, lol

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Brent is right.
Was there any ever doubt?
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Old 07-20-2010, 04:01 AM   #2 (permalink)
wellgeo03
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There is a write up on here somewhere. I have seen it a couple times.

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Old 07-20-2010, 10:07 AM   #3 (permalink)
4320Diesel
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be damned if i could find it. i tried tach wiring, 6.2 tach wiring, wiring gas tach. and nothing.
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1985 GMC (The Brown Streak) Sierra Classic 1500 4WD With 6.2L V8 Diesel and 4speed NP833 trans with hurst shifter! , 4911 6.5 ip with 6.5 shortie injectors GM-3 turbo. Single plane J code intake from Turbonator (thanks guys!). 3" exhaust and 3" BBQ black stacks! Isspro Pyrometer, Trisco Boost and Engine Oil Temp Gauges.
1998 Dodge Ram 2500 Sport club cab short box 4WD 5 speed 12 Valve cummins. Brentbilt fuel plate. 300 horse motorhome injectors, boost elbow, timing bumped to 18* autometer boost and pyro, 500 horse valair clutch waiting to go in!
Quote:
Originally Posted by diaric View Post
your wrong brent, i'll think of a reason later

Quote:
Originally Posted by diaric View Post
brent can't do that, it would look factory, lol

Quote:
Originally Posted by Trios View Post
Brent is right.
Was there any ever doubt?
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Old 07-20-2010, 10:39 AM   #4 (permalink)
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Might ask the guy in this posting. He talks about using a Gass Tach.

https://www.dieselplace.com/forum/sho...h+speed+sensor
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Old 07-20-2010, 12:46 PM   #5 (permalink)
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Could this be what you seek?
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Old 07-20-2010, 01:23 PM   #6 (permalink)
4320Diesel
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its kinda what i was looking for RC. its hard to figure out but when the time comes ill get a few cans of ether and some jumper cables and see if i can get my thinker to start .
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1985 GMC (The Brown Streak) Sierra Classic 1500 4WD With 6.2L V8 Diesel and 4speed NP833 trans with hurst shifter! , 4911 6.5 ip with 6.5 shortie injectors GM-3 turbo. Single plane J code intake from Turbonator (thanks guys!). 3" exhaust and 3" BBQ black stacks! Isspro Pyrometer, Trisco Boost and Engine Oil Temp Gauges.
1998 Dodge Ram 2500 Sport club cab short box 4WD 5 speed 12 Valve cummins. Brentbilt fuel plate. 300 horse motorhome injectors, boost elbow, timing bumped to 18* autometer boost and pyro, 500 horse valair clutch waiting to go in!
Quote:
Originally Posted by diaric View Post
your wrong brent, i'll think of a reason later

Quote:
Originally Posted by diaric View Post
brent can't do that, it would look factory, lol

Quote:
Originally Posted by Trios View Post
Brent is right.
Was there any ever doubt?
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Old 07-20-2010, 01:28 PM   #7 (permalink)
RCpullerdude
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Quote:
Originally Posted by 4320Diesel View Post
its kinda what i was looking for RC. its hard to figure out but when the time comes ill get a few cans of ether and some jumper cables and see if i can get my thinker to start .
So, you're finally going to get that thing started, eh? Might want to change the oil first though, you know it's been sitting since it was built.
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Old 07-20-2010, 01:35 PM   #8 (permalink)
4320Diesel
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its still got the original break in oil in it. i gotta run it for at least 2 hours then change it over to regular oil.
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1985 GMC (The Brown Streak) Sierra Classic 1500 4WD With 6.2L V8 Diesel and 4speed NP833 trans with hurst shifter! , 4911 6.5 ip with 6.5 shortie injectors GM-3 turbo. Single plane J code intake from Turbonator (thanks guys!). 3" exhaust and 3" BBQ black stacks! Isspro Pyrometer, Trisco Boost and Engine Oil Temp Gauges.
1998 Dodge Ram 2500 Sport club cab short box 4WD 5 speed 12 Valve cummins. Brentbilt fuel plate. 300 horse motorhome injectors, boost elbow, timing bumped to 18* autometer boost and pyro, 500 horse valair clutch waiting to go in!
Quote:
Originally Posted by diaric View Post
your wrong brent, i'll think of a reason later

Quote:
Originally Posted by diaric View Post
brent can't do that, it would look factory, lol

Quote:
Originally Posted by Trios View Post
Brent is right.
Was there any ever doubt?
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Old 07-20-2010, 01:36 PM   #9 (permalink)
RCpullerdude
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Quote:
Originally Posted by 4320Diesel View Post
its still got the original break in oil in it. i gotta run it for at least 2 hours then change it over to regular oil.
Maybe you should put new break in oil in it. If you bought a 1989 6.2 that had never been run, ever, would you trust the oil in it?
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Old 07-20-2010, 01:41 PM   #10 (permalink)
4320Diesel
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there better not be a 6.2 in there lol. if there is i might have cracked the block already

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1985 GMC (The Brown Streak) Sierra Classic 1500 4WD With 6.2L V8 Diesel and 4speed NP833 trans with hurst shifter! , 4911 6.5 ip with 6.5 shortie injectors GM-3 turbo. Single plane J code intake from Turbonator (thanks guys!). 3" exhaust and 3" BBQ black stacks! Isspro Pyrometer, Trisco Boost and Engine Oil Temp Gauges.
1998 Dodge Ram 2500 Sport club cab short box 4WD 5 speed 12 Valve cummins. Brentbilt fuel plate. 300 horse motorhome injectors, boost elbow, timing bumped to 18* autometer boost and pyro, 500 horse valair clutch waiting to go in!
Quote:
Originally Posted by diaric View Post
your wrong brent, i'll think of a reason later

Quote:
Originally Posted by diaric View Post
brent can't do that, it would look factory, lol

Quote:
Originally Posted by Trios View Post
Brent is right.
Was there any ever doubt?
Offline   Quick reply to this message
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