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  1. Chickenhawk

    What is the rear wheel speed sensor?

    A broken wire at the wheel speed sensor would also cause a 4WD trouble code. This is common because the wiring is in a vulnerable spot under the truck. (Ask me how I know.) A simple way to eliminate a broken wire or bad sensor is to shift into A4WD. If it starts to crow-hop right away...
  2. Chickenhawk

    Low coolant temperature

    Change the sensor while you are there. It's not that much more work, as they are side-by-side. In my experience, your symptoms point more toward the sensor. When I had your same symptoms, I changed just the sensor first just so I could report back to this forum. I was right, and didn't end up...
  3. Chickenhawk


    It irritates me too, especially when there is no one there to tell the actor not to take the plastic replica and 'toss' it in the air in some misplaced idea of what recoil should look like. I am not sure I would label it "safer" however, when hundreds of thousands of movies have been made safely...
  4. Chickenhawk

    Alignment needed after replacing struts?

    Only toe adjustment after changing the tie rod ends. It takes two tape measures, two pieces of stiff aluminum tubing and lots of fine adjustments under the truck.
  5. Chickenhawk


    The crew was target shooting in the desert that morning. The armorer is also a cowboy action shooter who competes in fast-draw contests so my guess is she likes to show off a lot. She forgot to unload her gun; the 1st AD grabbed it off the table because he was in a hurry and told Baldwin it was...
  6. Chickenhawk


    Productions that don't want to pay the cost of hiring a professional, are going to be SHOCKED at the cost of hiring an amateur. In this case, jail time and $millions. I always say that amateurs practice until they get it right. Professionals practice until they can't get it wrong. If people...
  7. Chickenhawk


    The difference between what happened with Brandon Lee and what happened with Halyna Hutchins was that with Brandon Lee, the production was at fault for sending the firearms expert home early because there was only one more gunshot to go, and the props assistant could handle it for the final two...
  8. Chickenhawk


    How many safety rules can three people break at any one time? - The person responsible for the safety of all cast and crew grabbed a gun off a table without checking it. - An actor took his word that it was unloaded. It wasn't. - Most serious, the armorer who's job it was to keep everyone safe...
  9. Chickenhawk

    Low coolant temperature

    Bad thermostat or bad coolant temperature sensor. Hard to tell which sometimes, so you should change them both. It has been my experience that temps consistently low for weeks is thermostat, and temps that rise and fall on the highway are temp sensor.
  10. Chickenhawk

    rear suspension rebuild -- is a snazzy panhard bar the only option?

    As a handling guru, let me weigh in on rear sway bars. Off-roaders like to take them off or disconnect them temporarily. But for 100% street driving, and especially cornering, I would not recommend disconnecting the rear bar unless one continues to drive at way below the limits of the vehicle...
  11. Chickenhawk

    NEED HELP fuel smell—-I changed almost everything

    I had my pump replaced last year because of the fuel smell from rotted lines. I bought all new lines, new fuel pump and a new lock ring in anticipation, and I was correct. It is hard (if not impossible) to replace old lines without destroying the lines on the pump. I also had to get a new tank...
  12. Chickenhawk

    SOLVED! Crankshaft Position Variation Relearn issues

    Silly question, but did you have the park brake on while attempting the test? If not, this can inhibit the results. Ask me how I know.
  13. Chickenhawk

    Battery replacement. Will this help?

    That won't work because the cigarette lighter is only an output, not an input port. The most it will accomplish is to try to charge whatever battery you have hooked to it. You can try a plug from a 12v source to your OBD connector. It might work.
  14. Chickenhawk

    WANTED Prop Rod Support

    I replaced my prop rod with hood struts many years ago. Still working fine after all these years.
  15. Chickenhawk

    Rear G80 fill plug replacement?

    1/2" NPT stainless plug with hex head. $4. I got mine at Princess Auto. (Similar to Harbor Freight.)
  16. Chickenhawk

    Diagnosing crow-hopping on a AWD 9-7x

    It might be as simple as a broken wire to a wheel speed sensor There is a TSB on that. The vehicle senses a difference in speed and locks up the transfer case. The TSB mentions a broken wire at the sensor itself, but mine was deep underneath the fuse block where a tiny probe had created a...
  17. Chickenhawk

    A little taller tire for towing? 2002 Envoy. 3.42 ration

    The secret to towing is to keep the RPMs up and just live with whatever gas mileage you get. This is why we recommend towing in 3rd unless the trailer is way under 1000 pounds. Low RPMs kill motors and transmissions, and raises heat levels while towing. Going up slopes means keeping it in the...
  18. Chickenhawk

    Strangest drive train noise w/ video

    That is the lower end Mevotech. Like most other aftermarket parts, there are two tiers: economy and premium. This is the one I used:
  19. Chickenhawk

    '02 Envoy SLT with a strange problem...

    Shifter linkage bushing is the likeliest suspect.
  20. Chickenhawk

    Strangest drive train noise w/ video

    Getting to the bottom of this. They sold you the wrong tire ... but strangely enough, it might not have been their fault. If you check the specs on BFG's website, that tire is listed as max load of 1400 pounds for the 80 psi version. The 50 psi version is 1100 pounds. Both those numbers are...
  21. Chickenhawk


    It's a module soldered to the circuit board in your cluster. I was going to tackle it myself but my solder skills are not great, and the possibility of causing serious and unrepairable damage, given the tiny size of the contacts, was just too great. I left it to the expert. Fixed the...
  22. Chickenhawk

    P0305 error

    In addition to the above, what make of coils did you use, and what is the make and model of spark plugs? During a plug change, it is sometimes possible to not connect the coil to the plug properly. If run like that, it often roasts the coil, even when new. Double check the connect on that coil...
  23. Chickenhawk

    Swapping Instrument Cluster

    You can get your own cluster rebuilt, with re-soldering to correct dead odometers and replacement of all your lights and cluster motors. There are companies in both Canada and the U.S. who do this work. This way, you avoid having to reprogram mileage. If you are in Canada, I can recommend a...
  24. Chickenhawk

    Aircon gurus -- check in

    No idea about a list of updates. I found it on a GM TSB many years ago, dealing with a musty smell when running a/c.
  25. Chickenhawk

    Issue with rear calipers

    Interesting videos. He lubes under the hardware but does not lube the pad ears. He makes a very good point about rust getting under the hardware and squeezing the pad ears. I know I just did my brakes yesterday, and one pad in the back was angled and worn to metal. I know I lubed the pads when I...
  26. Chickenhawk

    Aircon gurus -- check in

    Don't worry about the recirc mode. It kicks it on automatically in conditions where water may be building up on the condenser. It will run like this for a few minutes to dry the water so that you don't get a musty smell in the cabin. On our Trailblazers, GM added this capability in a PCM update...
  27. Chickenhawk

    NEED HELP 2003 Envoy 4.2 I6 ABS, Brake service light stalling and wont start

    Also, consider the possibility of your ignition switch. This is a common failure item, and one that causes multiple codes.
  28. Chickenhawk

    Replacing Pads & Rotors, Front & Rear

    Raybestos Element 3 pads are going on tonight. Because they are rated GG for friction, I wanted a new set of rear pads as well, and found the new Bosch QuietCast pad is also a GG. This time, I am going with AC Delco full coated Advantage rotors on the rear. I usually stick with AC Delco...
  29. Chickenhawk

    NEED HELP 05 Trailblazer Fuel Gauge Problem. Bad PCM?

    Two things. The Delphi FG0516 is listed for the XL version. Your profile lists a Trailblazer LT. If you have an LT, the correct number is Delphi FG0515. The other thing is the possibility of a stepper motor. I also believe that the low fuel light works off the gauge position, not the sender...
  30. Chickenhawk

    New member with a self-induced (?) electrical gremlin

    Did you check the megafuse under the hood?

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