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#1 |
Registered User
Join Date: May 2011
Location: Raleigh, NC
Posts: 240
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Spent some time with the new '85 today, including a shakedown trip
I took the bug sheild, bumper stickers, and kenco running boards off the truck today, then drove the truck 32 miles to work. The drive was kind of a shake down trip to learn more about it's over all condition. What stuff worked, what stuff didn't work, any strange noises, etc.
The radio works pretty good. Freebird came on the radio, that was awesome. The drivers side mirror is a little loose which created a really annoying vibration at idle. Not really a big deal. The only disturbing thing I found (besides a loose mirror), was this horrindous noise that seemed to come from the front of the transmission hump in the floor. It sounded like a grinding...WWHAAAGGGGGGG. It only happened when I was sitting still and nailed the gas. It seemed to be more violent when I had the wheel turned to take a 90 degree turn. At first I thought it was torque converter/transmission related, but now I am thinking that it is a loose motor mount or transmission mount that is allowing something to touch something else when it shouldn't. I am going to do some looking tomorrow to see if my fan has been hitting the shroud or the drive shaft hitting something. I will update tomorrow night with what I find |
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#2 |
Account Suspended
Join Date: Oct 2012
Location: phx, az
Posts: 868
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Re: Spent some time with the new '85 today, including a shakedown trip
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#3 |
Registered User
Join Date: May 2011
Location: Raleigh, NC
Posts: 240
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Re: Spent some time with the new '85 today, including a shakedown trip
I'll definitely check the fluid on that tomorrow, but I don't believe it is the power steering. My '73 corvette has made the power steering pump whine before, and this noise from the truck is different from that (same type pumps).
Thanks, James |
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#4 |
78K & 79C Jimmys
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
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Re: Spent some time with the new '85 today, including a shakedown trip
or use a broom stick to your ear...helps find a bad air pump
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John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350 |
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#5 |
Registered User
Join Date: May 2011
Location: Raleigh, NC
Posts: 240
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Re: Spent some time with the new '85 today, including a shakedown trip
Here are the pictures after removing the running boards and bug sheild.
![]() ![]() ![]() ![]() I didn't get the chance to do much investigating today. I looked under the truck at the U joints and motor mounts and trans mount but I didn't see anything obviously wrong. I believe I am going to have to get a second person to help me out. I will plan to do that over Christmas. |
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#6 |
I know the pieces fit
Join Date: Nov 2007
Location: MONTGOMERY, AL
Posts: 5,523
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Re: Spent some time with the new '85 today, including a shakedown trip
It sure is a good looking truck. Good luck finding the noise.
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#7 |
Registered User
![]() Join Date: Jul 2006
Location: Ozark, MO
Posts: 4,887
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Re: Spent some time with the new '85 today, including a shakedown trip
Gotta love the white knuckle shakedown run. Then Freebird comes on a it's like your in some sort of alternate 80's universe/paradise.
I think I might have already said it, but sweet truck!
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'20 Silverado Trail Boss ~ '17 Tahoe ~ '79 K15 Sierra Grande ~ '76 Blazer 2wd ~ '71 Cheyenne swb ~ '55 Pontiac Safari ~'50 3100 bagged ~ '80 Wife ~ Late model kids
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#8 |
78K & 79C Jimmys
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
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Re: Spent some time with the new '85 today, including a shakedown trip
nice,
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John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350 |
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#9 |
Registered User
Join Date: Jul 2009
Location: washington
Posts: 4,178
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Re: Spent some time with the new '85 today, including a shakedown trip
Man I wish I had those bed rails. Nice truck for sure!
Posted via Mobile Device
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377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac 3''spintech prostreet mufflers xpipe 1 3/4 headers build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217 Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511 |
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#10 | |
Registered User
Join Date: Oct 2004
Location: Roma,TX
Posts: 774
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Re: Spent some time with the new '85 today, including a shakedown trip
Nice truck and good luck tracking the problem
Quote:
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1978 stepside C10 build: http://67-72chevytrucks.com/vboard/s...d.php?t=468265 |
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#11 |
Registered User
Join Date: May 2011
Location: Raleigh, NC
Posts: 240
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Re: Spent some time with the new '85 today, including a shakedown trip
I was able to identify that awful grinding/binding noise is coming from the radiator cooling fan hitting the plastic fan shroud. I know this because I was showing my neighbor the problem and when I nailed the gas hard enough, the fan took off enough of the plastic shroud that it was still hitting slightly when the engine was at idle.
I got under the truck and replaced the transmission mount which appeared to be broken. I did not replace the motor mount, but I believe the drivers side is broken. I am not going to drive the truck anymore until I replace that motor mount (or I am just going to end up with another broken transmission mount. Must have been all the frame twisting torque from the 155 horse power 4.3L V6 ![]() In other news, I believe the front left brake line has collapsed. When I tried bleeding the brakes, barely any fluid came out of the bleeder. The bleeder and caliper are not rusty and appear to be new (previous owner said he replaced the caliper a week before I purchased the truck from him). |
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#12 |
Registered User
![]() Join Date: Jul 2006
Location: Ozark, MO
Posts: 4,887
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Re: Spent some time with the new '85 today, including a shakedown trip
I broke a 4.3L motor mount once, although it was more from wreckless tomfoolery than torque.
![]() Dad, if you ever happen read this I'm sorry and at least I never burned up the clutch!
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'20 Silverado Trail Boss ~ '17 Tahoe ~ '79 K15 Sierra Grande ~ '76 Blazer 2wd ~ '71 Cheyenne swb ~ '55 Pontiac Safari ~'50 3100 bagged ~ '80 Wife ~ Late model kids
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#13 |
Diggin The SquareLife
Join Date: Dec 2010
Location: garland,tx
Posts: 1,933
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Re: Spent some time with the new '85 today, including a shakedown trip
looks good....i still need to find some bedrails like that
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#14 |
Senior Member
![]() Join Date: May 2001
Location: Independence MO.
Posts: 7,697
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Re: Spent some time with the new '85 today, including a shakedown trip
Great looking truck!
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72 3/4t Custom Deluxe 402/auto 66k Original paint 71 3/4t 4x4 Custom Deluxe 10k original miles Original paint 71 3/4t Cheyenne 402 70k original paint 72 3/4t 4x4 Custom deluxe 72 3/4t 4x4 Custom deluxe 91k original paint 72 Cheyenne/30 Dually 69 Camaro SS396 4-speed 13 GMC 2500HD Duramax I bought new 05 Jeep Wrangler "Willys Edition" 12k miles (I bought new) 85 3/4 ton 4x4 Scottsdale 33k miles original paint 86 1 ton 4x4 SRW Silverado 454 restored 80 1 ton 4x4 SRW Silverado 9,434 original miles!! original paint 95 GMC 1 ton dually 4x4 my dad bought new 95 GMC 3/4 ton 4x4, regular cab 454, 31k original miles 2002 2500HD 4x4 regular cab 6.0L 67k miles 2002 2500HD 4x4 regular cab 8.1L 28k miles 2003 GMC 2500HD 4x4 regular cab Diesel 93k miles 67-72 Parts for sale |
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#15 |
Registered User
Join Date: Sep 2008
Location: Bailey, NC
Posts: 2,462
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Re: Spent some time with the new '85 today, including a shakedown trip
Looking good jrblanke! What's next in the plans?
Posted via Mobile Device
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Jeramy '84 GMC project truck '85 Chevy 4X4 SOLD '07 Chevy Trailblazer SS 5th Annual SHPHC Car/Truck Show Pics http://67-72chevytrucks.com/vboard/s...d.php?t=543605 UPDATED PICS! CHECK 'EM OUT |
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#16 |
Registered User
Join Date: May 2011
Location: Raleigh, NC
Posts: 240
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Re: Spent some time with the new '85 today, including a shakedown trip
Finally got around to working on the truck. The trans mount was cracked, and the drivers side mount was pretty wasted.
So as it ends up, the crazy noise was the metal fan hitting the shroud. ![]() Silvereagle, After having a few months to drive and evaluate it, I have decided that I am going to sell it. I know there were lots of these trucks made, but I still can't bring myself to molest such an original truck. I have an 84 silverado that I was working on before buying the blue truck and I think I am just going to continue to work on it. It is a great little truck that putts around town with ease, but the more I drove it the more I wanted to get the V8 silverado back on the road. Can't have both trucks. ![]() |
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#17 | |
Registered User
Join Date: May 2009
Location: Motor City
Posts: 9,193
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Re: Spent some time with the new '85 today, including a shakedown trip
Quote:
(lol) Nice truck - good luck with it. K
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Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ |
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#18 |
Registered User
Join Date: May 2011
Location: Raleigh, NC
Posts: 240
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Re: Spent some time with the new '85 today, including a shakedown trip
That shroud is pretty crazy! I feel like I could remove it, put some handles, a bottom, and a wheel on it and have a great wheel barrow.
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