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01-25-2013, 03:51 PM
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#1 (permalink) |
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Diesel Technician
Join Date: Nov 2012
Location: Moses Lake, WA
Posts: 428
iTrader Score: 0 reviews
Old School Oil Burners (Old SOBs) Member |
Anyone removed the pastic air dam behind bumper??
Not the one under but the one directly behind. it. It is currently in the way of where I want to put my intercooler. I plan on using the bumper nostrils as the intake for it and putting it behind the bumper. Keeping it safer than down in place of the skid plate. Anyone have ill effects to report from removing these plastic pieces?
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95 GMC Yukon 2 door 6.5 TD 4L80E, 3:73 Ratio. 286/75/16 tires. "F" intake. EGR delete. Stock "F" Prom. Pmd In the bumper. #9 resistor. 3" DP, 2.25" Crossover. 3" exhaust Daul bypass cooling system. S&B air intake system. According to the tire guy it has a lift on it. I tend to doubt it. |
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01-25-2013, 03:56 PM
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#2 (permalink) |
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Diesel Technician
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I've always figured it needed to be there. I have not removed it.
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95 Chevrolet Cheyenne 2500, 4x2, 168k L65, 3.73, G80, F, homemade TM, 2 psi boost DTech PMD on sink under front bumper, Fuel Pump relay mod, vac pump delete, Optic Sensor filter removed, Reman Inj pump at 161k, Head Gaskets and 2 glowplugs replaced at 162k NE Texas |
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01-25-2013, 03:59 PM
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#3 (permalink) |
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Diesel Technician
Join Date: Sep 2009
Location: Alberta, Canada
Posts: 235
iTrader Score: 0 reviews
Old School Oil Burners (Old SOBs) Member Alberta Coal Rollers Member |
I thought those air dams in the nostrils were for help directing extra air up and through the cooling stack. I havent removed mine either.
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DIESEL MANIAC!  1995 GMC Turbo Diesel 1500 4X4 w/ProComp 6" lift Rebuilt by me 'Goodwrench' motor, ARP headstuds, +0.010" head gaskets, Bosch Duraterms, 'F' upper and lower intake, HX40W-II turbo, Airtex lift pump, 130gpm water pump, 195* t-stat, stainless steel oil lines, all new/thicker wiring for glows plus override switch, High idle switch Custom exhaust-turbo back with dump before axle, modified crossover-2.5", Pyro-boost-trans temp. 315/75/16 Dunlop M/T's, 3.73, 3-Banger Buddy tune In process of gathering parts for 7 inch Stacks 
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01-25-2013, 04:05 PM
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#4 (permalink) |
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Diesel Technician
Join Date: Nov 2012
Location: Moses Lake, WA
Posts: 428
iTrader Score: 0 reviews
Old School Oil Burners (Old SOBs) Member |
thats what I have heard they are for. Well I heard for the oil cooler portion of it. Im wondering how big of a difference it will make.
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95 GMC Yukon 2 door 6.5 TD 4L80E, 3:73 Ratio. 286/75/16 tires. "F" intake. EGR delete. Stock "F" Prom. Pmd In the bumper. #9 resistor. 3" DP, 2.25" Crossover. 3" exhaust Daul bypass cooling system. S&B air intake system. According to the tire guy it has a lift on it. I tend to doubt it. |
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01-25-2013, 04:43 PM
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#5 (permalink) |
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Diesel Technician
Join Date: May 2007
Location: SF Bay Area
Posts: 213
iTrader Score: 0 reviews
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I'm missing the deflector behind the driver side nostril, the one that feeds the oil cooler, leaving the couplings exposed. We don't load it to where it makes a difference in the gauges. If you get to where you don't need at least the driver side nostril deflector, think of me as a prospective buyer for it.
Sixto '97 C2500 'burb 179K miles |
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01-25-2013, 05:33 PM
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#6 (permalink) |
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Diesel Technician
Join Date: Nov 2012
Location: Moses Lake, WA
Posts: 428
iTrader Score: 0 reviews
Old School Oil Burners (Old SOBs) Member |
Re: Fuel filter heater
No problem if I yank the stuff it will go up for sale.
Sent from my HTC VLE_U using AutoGuide App
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95 GMC Yukon 2 door 6.5 TD 4L80E, 3:73 Ratio. 286/75/16 tires. "F" intake. EGR delete. Stock "F" Prom. Pmd In the bumper. #9 resistor. 3" DP, 2.25" Crossover. 3" exhaust Daul bypass cooling system. S&B air intake system. According to the tire guy it has a lift on it. I tend to doubt it. |
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01-25-2013, 06:56 PM
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#7 (permalink) |
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Diesel Technician
Join Date: May 2005
Posts: 164
iTrader Score: 0 reviews
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Mine have been laying on my workbench since 2006. No problems so far. About 120,000 miles.
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1995 K2500 ECSB 6 lug. 2006 AMG 18:1, Kennedy exhaust, no cat, Heath mech boost controller, Heath v2.0 chip, A/A intercooler under bumper, SS diesel air filter, 285/75/16 all terrains, 3 pod pillar guages, high idle, silverado w/ leather. |
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01-25-2013, 07:39 PM
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#8 (permalink) |
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Diesel Master
Join Date: Jun 2008
Location: watertown, wi
Posts: 1,994
iTrader Score: 0 reviews
Badger State Diesel Club Member Midwest Smokers Member |
mine were missing, i made some out of sheet metal and it helped my temps
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Proud member #727 of The 3500 Dually Club bouncingtrucks.com for the original bouncing truck avatars 98 Gmc Sierra Victory Red K3500 Crewcab SLE dually 6.5td(F) fresh 4l80e 4:10 gears fresh gm-8 turbo,3" exhaust from turbo to muffler (no cat),new crate motor with new ip , bumper relocated fsd with hucksdorf diesel heatsink. 88 chevy k2500 7200gvw(short box conversion from long),18" lift 1 ton axle swap(ford d60 with chevy outers) 14 bolt rear with disks and detroit,rather large hunk of iron to power it on gas(currently building a short deck 572), divorced 205 t-case behind a th400 and rollin on cut 44" swamper tsl front goodyear ag 21.5 x16.1 14 ply rear, straight 3" pipe from ceramic long tubes to 5" stacks to make your ears bleed, OFF ROAD USE ONLY |
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01-25-2013, 10:43 PM
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#9 (permalink) |
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Diesel Specialist
Join Date: Mar 2009
Location: Ontario Canada
Posts: 689
iTrader Score: 0 reviews
Ontario Diesel Place Chapter Member Old School Oil Burners (Old SOBs) Member |
When I got my 94 6.5, I didnt have any thing behind the air nostrils just a Bumper with cut outs I thought lol, My buddys 97 6.5 has it, and another Buddy put a 6.2 Bumper on his 6.5 and no difference in cooling what so ever, I use the holes for For lights lol
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 1991 GMC Sierra 1500 SL 1/2 Ton Regular Cab, Long Box, 6.2L C-Code Detroit Diesel, 700R4 Transmission, Rear Wheel Drive, 1`000`000 Km & Counting All Original  My Garage 1991 GMC Sierra 2500 SL 3/4 Ton Regular Cab, Long Box, 6.2L J-Code Detroit Diesel, 4L80E Transmission, 4X4, 550`000KM 1994 GMC Sierra 3500 SLE 1 Ton Crew Cab, Long Box, Dually, 6.5L F-Code Detroit Turbo Diesel, 4L80E Transmission, 4X4, 380`000KM 1988 GMC Sierra 1500 SL 1/2 Ton Extended Cab, Long Box, 5.0L H Code, TH400 (3L80) Transmission, Rear Wheel Drive, 302`000Km & Counting 1991 GMC Sierra 1500 SL 1/2 Ton Regular Cab, Long Box, 5.7L, 700R4 Transmission, Rear Wheel Drive, 254`000KM Member # 40 Old SOBs, Member # 117 The Regular Cab Club, Member of ODPCProud Fan Of The Montreal Canadiens
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01-26-2013, 12:00 AM
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#10 (permalink) |
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Lead Moderator
Resident Coffee Addict
 
Join Date: Jun 2008
Location: Near The Coffee Maker
Posts: 11,593
iTrader Score: 0 reviews
Ontario Diesel Place Chapter Member DieselPlace.com Lifetime Premium Member |
Yes, they are to direct extra air into the rad. I've seen a few threads over the years where people had fogs in them and posted about overheating while towing - removing the lights and replacing the dams reportedly helped alleviate the issues.
It all depends on how hard you work your truck in the hot summer months - those who aren't towing heavy are unlikely to have issues when the dams are removed, but if you tow heavy we all know our trucks need every single thing possible to stay cool...those dams included.
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 Mark - Courtice, Ontario, Canada. '97 C3500 Crew Cab Long Box Dually 6.5 Turbo Diesel. Rebuilt with Navistar 506 block spring 2012 Special thanks to Racer55 and WhiteK2500 for their invaluable assistance! Commercial OTR Driver Since '95, RV'er By Weekend. Find my list of reference information HERE |
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