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madsen203

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About madsen203

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  1. I'm doing my best to isolate this ticking sound that is persistent, yet intermittent. Data so far: 2018 CC SLT 1500 6.2L 4WD Max Tow 19K miles, all stock Doesn't happen when motor is cold, much more prevalent when motor is warmed Doesn't happen when letting off throttle (only under application of throttle), can be heard in neutral, park, and in drive (not in reverse enough to tell--but it happens when transmission is not engaged) Sound follows steady or increasing RPM of motor Under light to medium load, noise is prevalent, under heavy acceleration it subsides (not because of engine noise) If I turn wheels hard left, the noise disappears, straighten wheels, it returns (like wheel is blocking noise from traveling) Sound only heard on driver side If I hit some oscillating bumps on the road, it can stop for a while before returning back (under varying loads as well) If left in tow/haul mode, at 2500 rpm under light load it can still be heard Ran 2 bottles of Red Line injector cleaner and it didn't eliminate/help noise The truck was silent until the 700 mile mark and I hit an expansion joint (nothing out of the ordinary) and the sound started and has remained ever since I've checked exhaust/manifold connectors and no sign of leaks (soot) I put a hollow aluminum rod (2 foot long) to the vacuum pump and did not hear any abnormal noises directly from the pump Obviously heard injector noises when put to the injectors; haven't had chance to stop on side of road when the sound disappears to run comparison tests Sometimes it'll run dead silent when driving down the road (after complete warm up) and power delivery doesn't change but noise comes back within a minute or two Sound heard in both V-8 and V-4 modes, and while in manual shift mode Use premium 91 gas ever since purchase (93 not available in Bay Area)--use Costco Top Tier fuel (high volume station) Oil changed with Mobil 0-20W Full Synthetic every 5K miles religiously and OEM filters (indicator usually states 37% remaining at around 5k miles) 90/10 Highway/City driving Any thoughts? My MPG is seems close to normal. Lifetime average of 17, most of my time driving is short city trips or long highway driving with a bed full of gear and a dirt bike. Some of the actions seem like it could be a noise related to the vacuum pump but the pump doesn't exhibit any noises itself. Sounds kind of like exhaust leak--exhaust seems to check out (no notable soot around connections or along piping that is visible). If it was something loose, I would think that even under deceleration (letting off throttle) would cause the noise to persist. It follows increasing RPM. I've checked around the footwell and haven't noiced any plugs missing or issues there. The fact that the sound is not there when cold or after some bumpy roads makes me think something else is up. Thoughts? Things to check? When it is quiet, this truck is wonderful. The ticking in the background that comes and goes is like a form of Chinese water torture. The fact that it does go away sometimes makes me even crazier as I know it could be better. When I bought it, it did not make this noise. Only after 700 miles of driving did it begin to tick tick tick away.
  2. Payload differs from max bed load. I have a payload of 1830...but the max payload for the bed is 1040 no matter how much or little is in the cab. This is probably due to max rated weight capacity of the tires and axles. Check your max payload for the bed--I think mine was listed in the glove box.
  3. Fog lights w/ headlights

    Please help! I got got the correct diodes and followed the instructions for 10-22. Having done so, now my intellibeams setup works (never did before) or at least the indicator comes on and deactivated per the manuals instructions (two pulls on the high beam). The fog fog lights still do not come on automatically with the headlights nor do they come on with high beams. I completed the diode install for the trailer mirror lights in reverse mod so I am 90% sure I’m doing things right as far as how deep the diode is inserted, etc. is is there something different for the 2018 trucks? I tried the 10-18 mod but the fog lights didn’t come on with high beams either. They did work on the parking lights in that configuration but, again, not automatically when the headlights triggered automatically. I was running the truck when testing. I covered ambient sensor and it triggered headlights. No fog lights illuminated with automatically. Am I missing something? TIA Michael
  4. Very Capable Truck

    More info on where you placed the spacer? Did it change the response of the pedal? Link to relevant info?
  5. Super helpful picture. Thank you for posting. I was wondering how some folks handles the diodes. Thank you for demonstrating install and how you connected reverse lights as well. Thumbs UP!
  6. Found a fix for this. It's been months since I brought it home. It has been since day one after a few hundred miles that this noise has been there. Finally climbed under the truck to look. Then I lifted the carpet. I found there is a wire (not sure yet what it goes to) that enters from under the carpet below the left rug mount towards the seat. I first moved the wire so it was routed differently because it was causing a lump under the mat that was uncomfortable. I then put a piece of DynaMat over this to seal the grommet and wrapped the wire so there was no "air gap" to allow sound to penetrate. The sound has dropped dramatically. It is still very faint. I found the ticking is from the DI or valve train that reverberates down under the truck past the transmission/transfer case. The sound would then come through this grommet and enter the cabin. Now that there is dynamat over this, the sound is no longer as loud (hardly notable). I only had a tiny piece of dynamat so I will order a few square feet of off-brand to put a few layers on top and one under the truck. That should eliminate ALL of the ticking sounds. I am stoked! The truck finally feels "new" again.
  7. Found a fix for this. It's been months since I brought it home. It has been since day one after a few hundred miles that this noise has been there. Finally climbed under the truck to look. Then I lifted the carpet. I found there is a wire (not sure yet what it goes to) that enters from under the carpet below the left rug mount towards the seat. I first moved the wire so it was routed differently because it was causing a lump under the mat that was uncomfortable. I then put a piece of DynaMat over this to seal the grommet and wrapped the wire so there was no "air gap" to allow sound to penetrate. The sound has dropped dramatically. It is still very faint. I found the ticking is from the DI or valve train that reverberates down under the truck past the transmission/transfer case. The sound would then come through this grommet and enter the cabin. Now that there is dynamat over this, the sound is no longer as loud (hardly notable). I only had a tiny piece of dynamat so I will order a few square feet of off-brand to put a few layers on top and one under the truck. That should eliminate ALL of the ticking sounds. I am stoked! The truck finally feels "new" again.
  8. Found a fix for this. It's been months since I brought it home. It has been since day one after a few hundred miles that this noise has been there. Finally climbed under the truck to look. Then I lifted the carpet. I found there is a wire (not sure yet what it goes to) that enters from under the carpet below the left rug mount towards the seat. I first moved the wire so it was routed differently because it was causing a lump under the mat that was uncomfortable. I then put a piece of DynaMat over this to seal the grommet and wrapped the wire so there was no "air gap" to allow sound to penetrate. The sound has dropped dramatically. It is still very faint. I found the ticking is from the DI or valve train that reverberates down under the truck past the transmission/transfer case. The sound would then come through this grommet and enter the cabin. Now that there is dynamat over this, the sound is no longer as loud (hardly notable). I only had a tiny piece of dynamat so I will order a few square feet of off-brand to put a few layers on top and one under the truck. That should eliminate ALL of the ticking sounds. I am stoked! The truck finally feels "new" again.
  9. Found a fix for this. It's been months since I brought it home. It has been since day one after a few hundred miles that this noise has been there. Finally climbed under the truck to look. Then I lifted the carpet. I found there is a wire (not sure yet what it goes to) that enters from under the carpet below the left rug mount towards the seat. I first moved the wire so it was routed differently because it was causing a lump under the mat that was uncomfortable. I then put a piece of DynaMat over this to seal the grommet and wrapped the wire so there was no "air gap" to allow sound to penetrate. The sound has dropped dramatically. It is still very faint. I found the ticking is from the DI or valve train that vertebrates down under the truck past the transmission/transfer case. The sound would then come through this grommet and enter the cabin. Now that there is dynamat over this, the sound is no longer as loud (hardly notable). I only had a tiny piece of dynamat so I will order a few square feet of off-brand to put a few layers on top and one under the truck. That should eliminate ALL of the ticking sounds. I am stoked! The truck finally feels "new" again.
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