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    Belt tensioner rattle

    I have a 1989 GMC Sierra 1500 with a 350. My belt tensioner had a bad bearing and was replaced. A week or so later, I started to hear a rattling noise from the engine bay, mostly when in drive or reverse. The noise is coming from the belt tensioner. When I put force on the tensioner, the noise...
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    89 GMC Volume up not working

    I have a 1989 GMC Sierra 1500. See my radio below. I have owned this truck for about 3 months and the volume + and tune + buttons were finnicky and had to press hard to get them to work. Everything else on my radio works perfect besides some kind of ground humming. Yesterday my volume + quit...
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    A/C Help - 1989 GMC Sierra 1500

    I just purchased a 1989 GMC Sierra 1500. I'm wanting to try and fix the AC myself to learn and also because the closest AC shop is over an hour from here. It is currently an r12 system, but with the price of r12 I'm thinking I should go ahead and convert to r134a. So far I've bought manifold...
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    Upgrade stock amp along with speakers?

    I have a 1989 GMC Sierra with tape deck and equalizer. I’m assuming I also have an amp with this unit? If so, can I upgrade the stock amp along with my stock 4x6 speakers or is it even necessary to upgrade amp? I might eventually add a amp and small sub, but not yet. I want to keep the the head...
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    What is this relay connector for?

    I found, what looks like, a relay connector under the dash with no relay attached. It’s under the drivers side dash in the left corner. What is it for?
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    New Seat Belts

    Anyone know a good place to order grey seat belts for my 1989 GMC Sierra 1500 with bench seats? The driver and passenger seat belts are hard to get them retracted. LMC seat belts are 300 a set, JEGs is about 51 per seat belt. I would prefer close to original, but doubt its likely unless I get...
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    Best headlight bulbs for 1989 GMC K1500.

    Are the Sylvania Xtravision the good bulbs for these trucks? What others are recommended? My headlight housings say "Guide Halogen" on them if it helps.
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    Remove paint on window molding?

    My truck was repainted sometime in its life. The paint looks fantastic. The only way I can tell its a repaint is there’s paint on the rear window molding. Looks like it wasn’t masked good enough. What is the best way to remove it from the molding without affecting the paint? Im thinking of maybe...
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    Greetings from West Virginia!

    Hi Everyone, I'm new to the forum obviously. I just purchased a 1989 GMC Sierra 1500 SLE. I will be picking it up tomorrow. I'm very excited! I plan to keep it stock as far as cosmetically. All the upgrades will be primarily mechanical-related. I know the MPG is low in general, but what are...
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