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  1. honkon

    Yukon/Tahoe Performance

    I'm reading that, when new, Vortec 4 door Yukon/tahoes did 0-60 in 8.5-9 seconds, depending on who you ask. My 97 Yukon with only around 5k on a rebuilt engine and transmission does it in 11. It's also had a new fuel filter, spark plugs, spark plug wires, and fan clutch since the rebuild. I...
  2. honkon

    Bogging/stalling & harsh tc lockup

    I'm planning to take my yukon on a 1000 mile trip and I want to see if I can get these issues ironed out. I rebuilt the engine about 2k miles ago, got it running in April. It's never run right. It likes to bog down when you're coming off of idle unless you're real light on the throttle. It also...
  3. honkon

    AC Issues

    Ac only works when stopped, and compressor engages/cycles erratically. When the ac is turned on sometimes it'll take 5 minutes for the compressor to even engage. Once it does, the pressures seem pretty good to me. 135 on the low side and 190-200 on the high side at 70-75F. It doesn't cycle like...
  4. honkon

    Freshly Rebuilt 350-Crankcase full of coolant

    I rebuilt the 5.7 in my Yukon and started it up for the first time a couple weeks ago. Started it up and let it run a couple separate times, for no more than 30 minutes collectively. Then I pulled the oil cap and saw this. Son of a *****. There wasn't any mixing of the oil and coolant before...
  5. honkon

    Safe to drive with broken sunshell/sungear?

    I'm looking at buying a '97 Yukon, which, according to the ad, slips in reverse. Guy told me the sungear is broken, but I didn't ask if he had somehow verified this or knew for sure. When I was looking at it, I put it in drive/reverse and rolled it a couple feet multiple times, each time it went...
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