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  1. M

    Removing a "repair" bearing

    My 10 bolt was leaking into the rear brakes. I thought no big deal, just put in a new axle seal. I take it apart and somebody had ruined the original bearings and put in a "repair" bearing that rides out further towards the end of the axle than the original. These "repair" bearings have...
  2. M

    Worn TBI injector symptoms

    My 94 5.7 has been having some starting issues lately. It has 230,000 on it. I've had it the last 100,000 and as far as I know it has the original injectors. It has started great, even in 20 below weather. Never touched the gas starting it, just turned the key and it fired right up. I've...
  3. M

    Electrical issue

    My voltmeter has been acting up. Normally it at 14 volts but I'll be driving down the road and it will start to drop, kind of bouncing, down to about 11 volts then stay there a while and so far it has always come back up to 14. I noticed today that the speedometer (electronic in my 94) was...
  4. M

    Fan clutch noise

    I swapped the Hayden severe duty fan for a heavy duty and it shounds fine now. It shouldnt have made much difference based on the slippage specs that Hayden has on both.
  5. M

    dont know what else to do about to give up

    I'm no master mechanic but I'll make a suggestion. Have you checked the timing? A friend had a 94 (I have one too) with a 5.7 and it would sputter and sometimes even stall pulling away from a stop sign. Ended up the timing was retarded too much. Also, considering all the work you have put...
  6. M

    Fan clutch noise

    They did give me the thicker severe duty model which is what the truck had originally. I've learned quite a bit about clutch fans in the last day or two. It looks like there are two models, heavy duty and severe duty, that would fit my truck with a 3.73 getting a severe duty and 3.42...
  7. M

    Fan clutch noise

    Last winter my 94 K1500 with a 5.7 & 230,000 miles started making a pretty bad sounding rattling noise when started up cold. It would mostly go away when warmed up. It ended up being the fan clutch. I replaced the clutch and rattle was gone but the fan noise over about 2500 RPM is terrible...
  8. M

    Mystery oil leak

    I am stumped trying to find the source of the oil leak on my 93 K1500 5.7. The leak is from the passenger side rear of the engine. Mostly it runs down and drips off the starter but some runs down the bell of the transmission. The valve cover is not leaking and the distributer seal is not...
  9. M

    Gear oil for G80

    A few weeks ago I changed the geal oil in the 93 K1500 I recently bought. It has a G80 anti slip and it works well. I put Shell Spirax HD 80/90 in it. I just noticed that the bottle says nothing about it being OK for limited slip differentials, unlike Valvoline. Anybody know if GM...
  10. M

    Air Cond. question

    I played with mine yesterday and it is what I thought. Before adjsutment the cut offs were about 25 and 45 PSI. This caused my AC to cycle too much when on low. I turned the screw couterclockwise 1 turn and the points changed to about 17 and 37. Then it ran too much whne on low and iced up...
  11. M

    Air Cond. question

    I have a 94 K1500. It has a similar switch however it was not adjustable (no screw) I put an adjustable one on so I can play around with it. I havent messed with adjusting it yet but from what I understand turning the screw counterclockwise will reduce the shut off pressures and vice vera if...
  12. M

    Ac question

    I am having some problems on my 93 k1500. It was converted to 134a before I bought it. It went flat over the winter. I vacuumed the system and then added new 134a and it seemed to work fine. At 85 degrees I had 30# low and 200# high. I was going to add some dye and try to find the leak...

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