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05-29-2015, 10:08 AM
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#1 |
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Registered User
Join Date: Mar 2012
Location: Woodbury, Ct.
Posts: 1,664
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What is this on my LQ4
It is driven off of the serpentine belt. The engine came out of a large box truck. |
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05-29-2015, 01:45 PM
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#2 |
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1965 Chevy C10, 2005 4.8L/4l60
 
Join Date: Aug 2004
Location: DFW Texas
Posts: 8,540
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Re: What is this on my LQ4
charcoal canister maybe???
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Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684  support our troops! |
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05-29-2015, 07:07 PM
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#3 |
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meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: What is this on my LQ4
What year/truck is it out of? I can't tell what its mounted on, is that on the power steering pump?
It looks like a diaphram sorta shape so maybe a charcoal cannister as Clyde said, or possibly a vacuum cannistor. It looks like there is a bunch of wiring going to it tho, instead of like vacuum lines or anything. HD/Medium duty trucks have had so many cab configurations and special equipment like PTO's that its hard to diagram them or have a reference without knowing what it came out of. Trucks with dump beds or a refrigerated box or something like that have all sorts of weird wiring.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING  |
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05-29-2015, 07:36 PM
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#4 |
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Registered User
Join Date: Mar 2012
Location: Woodbury, Ct.
Posts: 1,664
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Re: What is this on my LQ4
It was a 2005 Isuzu box truck..it is above the power steering pump with its own pulley. It had one big hose that I think went to the valve cover. Everything was cut and removed..so it is hard to tell. It reminds me of the vacuum on the kick panels of ac trucks.
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05-29-2015, 08:02 PM
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#5 |
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Senior Member
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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Re: What is this on my LQ4
It is a Vacuum Pump, All 6.0L Isuzu NPR had them. Remove it & buy a new belt. You will need a Vacuum "Push-in" fitting for the back of the intake if your running Vacuum assisted brakes.
The Vacuum Pump supplies Vacuum to the brake booster, If the engine dies or the Pump Fails, They also had a back-up Electric Vacuum Pump, Kind of a weird system that is super expensive when parts are needed, IIRC the Vacuum pump alone is over $300 & is only available from Isuzu. Last edited by clinebarger; 05-29-2015 at 08:12 PM. |
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05-31-2015, 01:09 PM
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#6 |
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Registered User
Join Date: Sep 2009
Location: Weare,NH
Posts: 1,589
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Re: What is this on my LQ4
That bracket looks kinda strange as well, you may just want to get a pickup bracket and belt.
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05-31-2015, 03:18 PM
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#7 |
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Registered User
Join Date: Feb 2004
Location: brownfield texas (west texas)
Posts: 1,936
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Re: What is this on my LQ4
Also worth a lot of money to a hotrodder running a huge cam and wanting to retain power brakes.
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