So what did you do to your GMC today?

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RF_Burns said:
I replaced the oil cooler adapter seal with a Parker 02-230 as recommended here by Rob Mueller:

Another seal that will work is a Dorman 917-036 which no one had stock of around here. Its a bit thicker and needs to be stretched a bit to fit in place (not fun in cramped working conditions). I found the parker seal in stock at a small local hydraulic shop and it slipped in perfectly, but I wish it had a bit more crush.

I had just replaced it 2 years ago with a seal from a new oil filter. Both the previous seals were leaking and came out looking like this, The link above explains it is due to cold flow of the rubber seal due to it being too thick.

View attachment 17307
Click to expand...

Interesting! I didn't realize Bob Mueller had already done that in 2014!

Unknowingly I did the same thing in 2020 or so, using a 1/8" oring and also wish it had more squish. However, it is more correct than using an old seal from a filter, that's absolutely not the correct seal for that gland. It's definitely an o-ring gland. Somehow it became one of those GMC urban legends that an old filter seal could be used there and it's just not correct.
 
Changed the left front turn signal bulb. 1157 and here’s a fun fact - my left turn signal on the dash was glowing. I wonder if one of the filaments shorted?
Also installled my new Progressive Dynamics 9300 45 amp converter. I was certain I’d ordered the 30 amp…
Oh - I bought the wrong LED’s for the fluorescent fixtures, too. Busy day.
 
Larry Davick said:
Changed the left front turn signal bulb. 1157 and here’s a fun fact - my left turn signal on the dash was glowing. I wonder if one of the filaments shorted?
Also installled my new Progressive Dynamics 9300 45 amp converter. I was certain I’d ordered the 30 amp…
Oh - I bought the wrong LED’s for the fluorescent fixtures, too. Busy day.
Click to expand...
If the headlights are on, then the parking light filament gets power. If your dual filament bulb has no ground, then power flows through both filaments in a series configuration, comes out the "hot" end of the turn signal filament, travels up the turn signal wire, and has to find its path to ground through the turn signal indicator in the dash. By this time it has gone through three filaments instead of one, so it's not the nominal amount of current. You get a soft glow. It should quit if you turn off the headlights (or if you fix the ground on that turn signal).

Our coaches are prone to this since the metal turn signal housing is mounted on fiberglass. We have to go out of our way to maintain those grounds.
 
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Finally patched my 4KW inverter into the house breaker box. Kept it simple: added a new NEMA1450 outlet on a 6/3 tether to the inverter (45A output terminal block) and routed it through the services bay/cubby. Now I have the shore power plugged into the inverter instead of the generator.
 
Outer axle boot installed. New upper ball joint installed (just needed boot, but the joint was readily available and the labor price was the same). The upper was only 5 years old but whatever....

Ordered a full set of reflective thermal window shades.
 
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Tybalt39 said:
Outer axle boot installed. New upper ball joint installed (just needed boot, but the joint was readily available and the labor price was the same). The upper was only 5 years old but whatever....

Ordered a full set of reflective thermal window shades.
Click to expand...
Are these the ones you ordered?
www.high-end-motorsports.com

GMC Motorhome & Transmode Sunshade

<br><br> <center><img src="https://turbifycdn.com/ty/cdn/yhst-16851555716622/sunsahde3.webp" alt="carpettextc8" alt="carpettextc8" border="0"> <img src="https://turbifycdn.com/ty/cdn/yhst-16851555716622/susnhades.webp" alt="carpettextc8" border="0"> <img...
www.high-end-motorsports.com www.high-end-motorsports.com

I ordered the set for the front windows last summer and we were able to use them on a couple of campouts. Helps with keeping the heat and light out. I installed snaps on the edges of the side windows to keep the shades tight against the window
 
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Bhart said:
Are these the ones you ordered?
www.high-end-motorsports.com

GMC Motorhome & Transmode Sunshade

<br><br> <center><img src="https://turbifycdn.com/ty/cdn/yhst-16851555716622/sunsahde3.webp" alt="carpettextc8" alt="carpettextc8" border="0"> <img src="https://turbifycdn.com/ty/cdn/yhst-16851555716622/susnhades.webp" alt="carpettextc8" border="0"> <img...
www.high-end-motorsports.com www.high-end-motorsports.com

I ordered the set for the front windows last summer and we were able to use them on a couple of campouts. Helps with keeping the heat and light out. I installed snaps on the edges of the side windows to keep the shades tight against the window
Click to expand...
Yup. :)
 
Removed cruise control actuator and sensor (they were non-functional anyway).
Removed unneeded aftermarket fuel regulator and filter some PO installed in front of the carburetor filter (there was no filter cartridge in the carb; probably why an inline filter was installed :ROFLMAO:).
Installed the proper filter in the carb, along with the missing spring.
Installed an electric choke as the primary was wired open by some PO. The primary is still a bit "sticky".

Removed and cleaned the carburetor to find why it was leaking fuel onto the manifold (this prompted the filter/regulator removal as well). Found the accelerator pump piston was allowing fuel to pool at the top, eventually filling that depression and spilling onto the manifold. EFI may be coming sooner than planned.

Replaced instrument cluster LEDs with "dimmable" LEDs. It works! My instruments are now the same color as the old incandescent lights and dim in sync with the remaining bulb in the climate controls.
 
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Tybalt39 said:
Removed cruise control actuator and sensor (they were non-functional anyway).
Click to expand...
There is an individual on E-bays that will give a core value for the transducer. They rebuild the transducers for $159or
These are becoming like hens' teeth.
www.ebay.com

1981 1982 1983 GM Chevy Cruise control transducer rebuild service RESUME & NON | eBay

Find many great new & used options and get the best deals for 1981 1982 1983 GM Chevy Cruise control transducer rebuild service RESUME & NON at the best online prices at eBay! Free shipping for many products!
www.ebay.com
 
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Tearing down the Glenbrook for some routine maintenance and parking brake cable replacements, getting it ready for the new owners!
1766962855470.webp
 
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Passenger side pocket kept falling through hole in the side panel.
Stuffed rags in the pocket and used a heat gun on the plastic to reshape pocket.

Sides of pocket had collapsed in.
IMG_0001.webp

Stuffed rags to force sides out.

IMG_0002.webp

Used heat gun to soften plastic sides of pocket.

IMG_0003.webp

End result is sides opened up and clips locked pocket in place.

IMG_0005.webp
 
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Happy New Year to you all form the uk,

First flurry of snow here yesterday but removed both drivers and passenger floor pans,as the side windows must have been leaking for years,you know what happens rotting ash tray and all! made new sections and will fit in the next few days if i get time,also bought stainless steel pully wheels and fitted to chassis to help the hand brake.4084F027-DD07-458E-B453-C90954C04DDD_1_105_c.webp3FC12523-A78A-4B0E-94A6-93B06BA8633D_1_105_c.webpBE79A9CB-99F4-4DFA-8ECB-0044AD6CC5F5_1_105_c.webp
 
GMCMI Spring 2026 Rally
Get your shine on at www.cruzingear.co

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