dually problems - The 1947 - Present Chevrolet & GMC Truck Message Board Network

magnethead · 08-16-2005, 04:23 PM

ok, we last drove the dually about 2 or 3 weeks ago to town. My mom starts it up today to take me to school, and it started smoking. I drove it home (i have my permit) and it didnt do anything when I was driving, but the second i took it out of gear and put it in park, a whitish smoke came out of the left side of the hood with a foul odor (like something was burning), and it stopped when i turned the ignition off. I initially thought maybe transmission (TH400), but no smoke came out from under the running boards that I could tell. I lifted the hood, stuck my head in, and sniffing around, it seems like the brunt of the smell came from the waterpump/mechanical fan area. Driving it home, i hadn't thought of even glancing at the water gauge to see if it was hot. I went ahead and parked it on asphalt, if it leaks fluid, i'll know. Any ideas?

86 GMG · 08-16-2005, 04:44 PM

Is There Any Liquid (oiley Substance) On The Manifolds Headers Or Basically The Exaust That May Have Leaked On It, Check All Your Fluids (oil, Trans., Power Steering, Anti-freeze) If Any Of These Are Low Fill Back Up To Recommended Full And Keep An Eye On Them To Maybe Find Out What Is Wrong
Hopefull This Helps You And Mom Out Good Luck

magnethead · 08-16-2005, 06:08 PM

here's pics..the driver side inner fender had some sort of fluid on the bottom lip of it, the top has more liquid (swiped with finger- looked to be like water (we were driving in a light rain and the hood is slightly bent in that spot..water may have come in through the bend) that you can see in one of the pics), something (i'm thinking silicone?) is sticking out of both valve covers, it needs 1 quart of oil, power steering (if i remember right, that is the canister in front, right?), and i didnt check the tranny fluid. I moved the truck and there wasnt any oil on the ground (ground was moist, but any fluids will float on water).

also, that is the second on the right when viewed from front (#4?) spark plug boot hitting the header...we have hi temp tape on it for now (the white stuff)

rockman20 · 08-17-2005, 10:01 AM

Was the burnt smell kind of a sweet smell to it? My initial guess is that it is coolant that you smell burning. Now. Where is it coming from. My first suggestion would be to run it to get it to normal operating temps again. See if it smokes again. Leave it run and get out and inspect everything. Look for signs of smoke coming from anywhere.

Could be a cracked head, blown head gasket, bad radiator cap, leaking overflow tank, leaking radiator, waterpump, etc.

This is where I would first look. Be aware of the smell. When you do find what it is, then you will know that if you smell that smell again, what it is coming from.

magnethead · 08-17-2005, 04:36 PM

the rad. overflow tank is on the pass. side of the truck and has no cap. the smoke came from drivers side, kinda like where those drops on the fender are, by that big mass of whatever.

magnethead · 08-21-2005, 07:09 PM

found the problem. i told my dad the power steering was dangerously low, the first thing he did was crank it over and check the power steering hoses. Found it first guess.

badone07 · 08-21-2005, 10:13 PM

You got lucky. While back I had a ps hose burst on the highway with mine. Obviously lost ps and pb, as well as had a nice engine fire.

magnethead · 08-22-2005, 04:27 PM

i think ours would have done the same thing. like i said, it has long tube headers, but the pin hole was facing outward away from the engine, but since it has the insulation type stuff on it, it indirectly sprayed on the engine. Thats why the inner fender had all the oil on it.

86 GMG · 08-22-2005, 04:54 PM

well good you found the prob. now you just have to fix it good work young man

08-16-2005, 04:23 PM	#1
magnethead 7000 #'s of american IRON Join Date: Dec 2004 Location: north tx Posts: 883	dually problems ok, we last drove the dually about 2 or 3 weeks ago to town. My mom starts it up today to take me to school, and it started smoking. I drove it home (i have my permit) and it didnt do anything when I was driving, but the second i took it out of gear and put it in park, a whitish smoke came out of the left side of the hood with a foul odor (like something was burning), and it stopped when i turned the ignition off. I initially thought maybe transmission (TH400), but no smoke came out from under the running boards that I could tell. I lifted the hood, stuck my head in, and sniffing around, it seems like the brunt of the smell came from the waterpump/mechanical fan area. Driving it home, i hadn't thought of even glancing at the water gauge to see if it was hot. I went ahead and parked it on asphalt, if it leaks fluid, i'll know. Any ideas?

08-16-2005, 04:44 PM	#2
86 GMG Registered User Join Date: Apr 2005 Location: Tulsa Oklahoma Posts: 943	Is There Any Liquid (oiley Substance) On The Manifolds Headers Or Basically The Exaust That May Have Leaked On It, Check All Your Fluids (oil, Trans., Power Steering, Anti-freeze) If Any Of These Are Low Fill Back Up To Recommended Full And Keep An Eye On Them To Maybe Find Out What Is Wrong Hopefull This Helps You And Mom Out Good Luck __________________ square body trucks an addiction or an investment either way they consume all my extra time and money

08-16-2005, 06:08 PM	#3
magnethead 7000 #'s of american IRON Join Date: Dec 2004 Location: north tx Posts: 883	here's pics..the driver side inner fender had some sort of fluid on the bottom lip of it, the top has more liquid (swiped with finger- looked to be like water (we were driving in a light rain and the hood is slightly bent in that spot..water may have come in through the bend) that you can see in one of the pics), something (i'm thinking silicone?) is sticking out of both valve covers, it needs 1 quart of oil, power steering (if i remember right, that is the canister in front, right?), and i didnt check the tranny fluid. I moved the truck and there wasnt any oil on the ground (ground was moist, but any fluids will float on water). also, that is the second on the right when viewed from front (#4?) spark plug boot hitting the header...we have hi temp tape on it for now (the white stuff) Attached Images

08-21-2005, 10:13 PM	#7
badone07 Project 2 Resume Join Date: May 2004 Location: Jim Thorpe, PA Posts: 884	You got lucky. While back I had a ps hose burst on the highway with mine. Obviously lost ps and pb, as well as had a nice engine fire. __________________ John 1984 C30 Chevy Crew Cab Dually 1998 Jeep Cherokee 4x4 2004 Chevy Trailblazer 4x4 (wife's) 1970 Mustang FB fully tubed (getting 521 BBF & powerglide) 1978 Nova 2dr (going BBCaddy & S.P. th400) 1984 Monte SS (circle track car)

08-22-2005, 04:54 PM	#9
86 GMG Registered User Join Date: Apr 2005 Location: Tulsa Oklahoma Posts: 943	well good you found the prob. now you just have to fix it good work young man __________________ square body trucks an addiction or an investment either way they consume all my extra time and money

08-17-2005, 10:01 AM	#4
rockman20 "The dude abides" Join Date: Apr 2003 Location: North Dakota Posts: 472	Was the burnt smell kind of a sweet smell to it? My initial guess is that it is coolant that you smell burning. Now. Where is it coming from. My first suggestion would be to run it to get it to normal operating temps again. See if it smokes again. Leave it run and get out and inspect everything. Look for signs of smoke coming from anywhere. Could be a cracked head, blown head gasket, bad radiator cap, leaking overflow tank, leaking radiator, waterpump, etc. This is where I would first look. Be aware of the smell. When you do find what it is, then you will know that if you smell that smell again, what it is coming from. __________________ RockMan 1993 Chevy Silverado C3500 1 ton dually 1994 Honda Civic 1969 Oldsmobile Cutlass S 1953 IH Farmall Super M New to the fleet: 1992 Subaru Loyal

08-17-2005, 04:36 PM	#5
magnethead 7000 #'s of american IRON Join Date: Dec 2004 Location: north tx Posts: 883	the rad. overflow tank is on the pass. side of the truck and has no cap. the smoke came from drivers side, kinda like where those drops on the fender are, by that big mass of whatever.

08-21-2005, 07:09 PM	#6
magnethead 7000 #'s of american IRON Join Date: Dec 2004 Location: north tx Posts: 883	found the problem. i told my dad the power steering was dangerously low, the first thing he did was crank it over and check the power steering hoses. Found it first guess.

08-22-2005, 04:27 PM	#8
magnethead 7000 #'s of american IRON Join Date: Dec 2004 Location: north tx Posts: 883	i think ours would have done the same thing. like i said, it has long tube headers, but the pin hole was facing outward away from the engine, but since it has the insulation type stuff on it, it indirectly sprayed on the engine. Thats why the inner fender had all the oil on it.



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