Recent content by Marksman762

  1. M

    Front Right Vibrations

    Thanks everyone - wow - yes the title should be left side. Whoops. I did check for a loose bearing, no problems there. I may just have a shop check balance, it's a good place to start. How would I check the CV and/or differential? I did change the front dif fluid around 15,000 miles ago...
  2. M

    Front Right Vibrations

    Hello everyone, I'm trying to track down the source of some strange vibrations coming from my front driver's side. It's almost as if something is pulling at/getting caught in the wheel/preventing it from smoothly turning. There isn't any noise associated with it, just a...
  3. M

    Thermostat bad out of the box?

    I have and use Torque. It'll sit at around 190-192 while driving, then drop to 180 or lower when idling. I may wait until the outside temps warm up a bit and see what happens. Last time I had a thermostat go bad it didn't matter whether I was driving or not, the gauge was indicating low.
  4. M

    Thermostat bad out of the box?

    Is it likely that my new AC Delco thermostat could be bad out of the box? Some of you may recall my thread a couple months ago which resulted in me replacing both my temp sensor and thermostat. Now, I'm noticing when I come to a stop or idle, my temp gauge drops by two or three ticks. Once...
  5. M

    Coolant thermostat/temp questions

    Based on the above - yes that sounds like a stuck open thermostat. That said - get your code scanned when you can, that will tell a lot. It could be completely unrelated. So long as you're on the road long enough (10 minutes+) you should warm up to operating temp regardless of the recently...
  6. M

    Vibration from 25-40MPH

    Forgot about this thread... Ended up being worn tie rods. Quite a bit of movement when I jacked the car up and moved the wheel side to side. I replaced them both, got an alignment, and all is well! Thanks everyone.
  7. M

    Noise on highway?

    I ended up taking it into the family mechanic since I was in the area over the new year. He found the PAX side bearing had play in it, but the driver's side was tight. He replaced the PAX side, however I still hear the noise, which he suspected I would. Both bearings need replacement. Job is...
  8. M

    check engine and reduced engine power lights

    I've had this too a few times when it's super cold out, on both Envoy's I've owned. Cleared the codes, never to return. Typically the truck runs fine after a simple restart. I do believe it's related to the TB, but it only happens once or twice a year, and only when it's stupid cold out. I...
  9. M

    Coolant thermostat/temp questions

    Hey everyone, I replaced both the thermostat and the temp sensor and am seeing normal readings again. Temps are close to 200 degrees and I'm not seeing any movement on the gauge anymore. I used an AC Delco thermostat this time, as the factory packaging lists a higher temp than most of the...
  10. M

    Coolant thermostat/temp questions

    Good discussion! Getting back on topic I scanned another Trailvoy from a buddy who just had his thermostat replaced. I was getting a solid 196+ for temperature readings. Based on that and what everyone here has said I surely have a problem. The way my needle bounces around it's probably...
  11. M

    Noise on highway?

    Driving home I didn't really notice any noise changes when I was swerving around a bit on the highway. In town I don't hear the noise so I didn't notice any changes while turning. I got the front end in the air tonight and played around a bit. The only thing I noticed was on the drives...
  12. M

    Coolant thermostat/temp questions

    Driving home today I noticed the following: Torque showed between 185-188.6F. It moved between exactly 185, 186.8, and 188.6 degrees. Nothing in between for at temp driving. This was both highway and stop and go in town, didn't really matter what I was doing. At 185 the gauge would read...
  13. M

    Noise on highway?

    116K miles. No known bearing history since I've owned it (almost two years now). Come to think of it, no, I've not changed loads on it at those speeds, I always forget to check that. All the highways in ND are straight :) I'll experiment with that a bit and let you guys know what I find...
  14. M

    Noise on highway?

    Hi everyone, I know noises are hard to diagnose or explain over the 'net, but I'll do my best: I've noticed a weird humming noise from about 35-60MPH (have not gone faster) coming from the drivers side front wheel area, as far as I can tell. It sounds very much like the noise you would get...
  15. M

    Coolant thermostat/temp questions

    Hi everyone, I've noticed a few issues lately and I think they might point to a faulty coolant temp sensor or possibly a thermostat. I've replaced the thermostat once, about a year and a half ago. I did not replace the temp sensor (had the wrong part, it turns out). It's been super cold...

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