Jump to content

Bad Fm Reception 2007 Yukon

tommbo

By tommbo
in Ask A GM Technician

Recommended Posts

tommbo Enthusiast

tommbo

Posted
Posted

I have a 2007 Yukon Denali, poor fm reception. They changed the radio,antenna in the window,and module, checked all bulletins. Still no good. I would like to know if this is a popular problem with this new antenna. I am going to try to ask them to put a mast antenna in if they cant find the problem. also..when I open the rear door, the reception gets perfect, leading me to belive the window antenna is junk!!

bobcat5544 Enthusiast

bobcat5544

Posted
Posted

Document ID# 1749735

2007 GMC Truck Yukon - 4WD

--------------------------------------------------------------------------------

Subject: Poor radio reception - keywords antenna AM FM mast tool #PIT3839 - (01/10/2006)

 

Models: 2001-2002 Chevrolet Old Body Style Trucks and Utilities

2001 -2002 GMC Old Body Style Trucks and Utilities

2002-2006 Cadillac Escalade Models

2001-2006 Chevrolet Avalanche, Tahoe, Suburban

2001-2006 GMC Yukon Models

--------------------------------------------------------------------------------

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

 

Condition/Concern:

Some customers may complain about poor radio reception on Full Size Trucks and Utilities. This concern may be related to a loose radio antenna mast .

 

Recommendation/Instructions:

In an effort to allow the dealer and subsequently the customer to properly tighten their radio antenna mast to the base, a new orange or black plastic "wrench" will be shipped attached to the antenna mast starting mid-April, 2001.Dealers should utilize this tool to properly attached the mast to the base and then remove the plastic orange or black wrench and place it in the glove box for the owner's use later.

 

Note: The only way to order a replacement wrench is to order a new antenna mast assembly.

 

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

 

OR

 

Document ID# 1973305

2007 GMC Truck Yukon - 4WD

--------------------------------------------------------------------------------

Subject: Radio - Poor AM and FM Reception (Inspect and Fully Seat Connector) #06-08-44-033A - (05/18/2007)

 

Models: 2007 Cadillac Escalade Models

2007 Chevrolet Avalanche, Silverado, Suburban, Tahoe

2007 GMC Sierra, Yukon Models

--------------------------------------------------------------------------------

This bulletin is being revised to clarify the location of connector C213 in step 3 of the Correction procedure. Please discard Corporate Bulletin Number 06-08-44-033 (Section 08 -- Body & Accessories).

--------------------------------------------------------------------------------

Condition

Some customers may comment that the radio has poor AM and FM reception.

 

Cause

The radio antenna coax cable may not be fully seated at connector C213.

 

Correction

Remove the driver and passenger windshield pillar garnish molding (A-pillar trim) and disconnect the wiring harness.

Remove the instrument panel upper trim panel and disconnect the electrical connections.

Remove the foam tape surrounding the radio coax cable electrical connector C213. Connector C213 is located under the top left side of the instrument panel upper trim panel on all vehicles except the Cadillac Escalade EXT and the Chevrolet Avalanche. Connector C213 is located under the top right side of the instrument panel upper trim panel on the Cadillac Escalade EXT and the Chevrolet Avalanche.

 

Inspect connector C213 and manipulate coax as needed to ensure that the connector is fully seated (The above graphic shows the connector properly seated).

Install foam tape around connector C213.

If re-securing the connector does not correct the condition, refer to SI for further diagnosis and repair.

Install the instrument panel upper trim panel and electrical connections.

Install the driver's and passenger's windshield pillar garnish moldings (A pillar trim) and electrical connectors.

  • 2 weeks later...
tommbo Enthusiast

tommbo

Posted
  • Author
Posted
Document ID# 1749735

2007 GMC Truck Yukon - 4WD

--------------------------------------------------------------------------------

Subject: Poor radio reception - keywords antenna AM FM mast tool #PIT3839 - (01/10/2006)

 

Models: 2001-2002 Chevrolet Old Body Style Trucks and Utilities

2001 -2002 GMC Old Body Style Trucks and Utilities

2002-2006 Cadillac Escalade Models

2001-2006 Chevrolet Avalanche, Tahoe, Suburban

2001-2006 GMC Yukon Models

--------------------------------------------------------------------------------

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

 

Condition/Concern:

Some customers may complain about poor radio reception on Full Size Trucks and Utilities. This concern may be related to a loose radio antenna mast .

 

Recommendation/Instructions:

In an effort to allow the dealer and subsequently the customer to properly tighten their radio antenna mast to the base, a new orange or black plastic "wrench" will be shipped attached to the antenna mast starting mid-April, 2001.Dealers should utilize this tool to properly attached the mast to the base and then remove the plastic orange or black wrench and place it in the glove box for the owner's use later.

 

Note: The only way to order a replacement wrench is to order a new antenna mast assembly.

 

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

 

OR

 

Document ID# 1973305

2007 GMC Truck Yukon - 4WD

--------------------------------------------------------------------------------

Subject: Radio - Poor AM and FM Reception (Inspect and Fully Seat Connector) #06-08-44-033A - (05/18/2007)

 

Models: 2007 Cadillac Escalade Models

2007 Chevrolet Avalanche, Silverado, Suburban, Tahoe

2007 GMC Sierra, Yukon Models

--------------------------------------------------------------------------------

This bulletin is being revised to clarify the location of connector C213 in step 3 of the Correction procedure. Please discard Corporate Bulletin Number 06-08-44-033 (Section 08 -- Body & Accessories).

--------------------------------------------------------------------------------

Condition

Some customers may comment that the radio has poor AM and FM reception.

 

Cause

The radio antenna coax cable may not be fully seated at connector C213.

 

Correction

Remove the driver and passenger windshield pillar garnish molding (A-pillar trim) and disconnect the wiring harness.

Remove the instrument panel upper trim panel and disconnect the electrical connections.

Remove the foam tape surrounding the radio coax cable electrical connector C213. Connector C213 is located under the top left side of the instrument panel upper trim panel on all vehicles except the Cadillac Escalade EXT and the Chevrolet Avalanche. Connector C213 is located under the top right side of the instrument panel upper trim panel on the Cadillac Escalade EXT and the Chevrolet Avalanche.

 

Inspect connector C213 and manipulate coax as needed to ensure that the connector is fully seated (The above graphic shows the connector properly seated).

Install foam tape around connector C213.

If re-securing the connector does not correct the condition, refer to SI for further diagnosis and repair.

Install the instrument panel upper trim panel and electrical connections.

Install the driver's and passenger's windshield pillar garnish moldings (A pillar trim) and electrical connectors.

Like I said all updates have been checked. Can someone tell me if the antenna wire is routed thru the rear of the vehicle, near the back door?

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,840
    Total Members
    8,960
    Most Online
    appletrav
    Newest Member
    appletrav
    Joined

  • Who's Online   4 Members, 0 Anonymous, 281 Guests (See full list)

  • Latest Articles

  • Posts

    • newdude
      2 speed transfer case optional now?

      By newdude · Posted

      This is a 1/2 ton thing ONLY.  All HDs 2020-2026 have the two speed transfer case, with Autotrac as an option.     1/2 tons 2019-2026, regular 4x4s come with a single speed case (no 4LO!), and trucks with Z71 ordered, or all Trail Boss trucks come with the 2 speed case.  2 speed case is also an option on WT, and is also standard on High Country.  
    • newdude
      Different requirements for oil filters?

      By newdude · Posted

      2013 5.3 still to this day calls for the PF48 filter.  Which as a 15psi bypass pressure.     There is a TSB, 17-NA-157 that talks about the PF-63 and PF-64 filters which have a higher bypass rating of 22psi.    TSB HERE - temp.xml   "Beginning in 2012, the oil pumps began to regulate main gallery feedback instead of pump out pressure. This means that the oil pump now does not begin to regulate until pressure is built up to the main gallery. This change reduces the amount of time it takes to provide oil to the engine bearing and lifters during extreme cold start conditions.  Main gallery feedback oil pump control systems are present on the following engine families which use Spin-on oil filters: Small Gas Engine (SGE), Large Gas Engine (LGE), High Feature (HFV6) Gen2 and Small Block Gen5 gasoline engines. These engines with the main gallery feedback oil pump control systems are factory built with an ACDelco® oil filters"   It also calls out what engines use those filters.  The gen 4 small blocks were not on that list (LMG, LC9, L9H, L92, L94, L20, L96).  Gen 5 small blocks use the higher pressure filter.          That all said...   Your 7045 Napa filter is the PF63 equivalent, with 22psi bypass.  You are already using the higher bypass pressure filter.  You CAN keep using it, you don't technically have to use it though.  
    • Grumpy Bear
      Different requirements for oil filters?

      By Grumpy Bear · Posted

      Do you know WHY the filter relief setting was increased to 22 psig?    When the new system goes into the second stage the pump volume ramps up considerably. It was found that the 15 psi filter bypass setting put the filter in bypass on a warm engine when the second stage was activated. Raising the filter bypass setting forced the filter to do what it designed to do. Filter. Preventing debris from circulating during high load, high rpm operation.    So next question is how did GM find this out? VLOM/lifter failures and a deep dive by Melling Corp.    Last question. Is it required? Look at it like this; a motor may be equipped with a rev limiter. But it only works if the set point in reached. That 22 psig setting only matters if the pressure differential across the filter media exceeds 15 psig during normal warm operation. Second stage kicks in around 3000-3500 rpm.    I can't answer your question because I don't know you and how you use the truck. But I think there is enough information here to let you decide for yourself. 😉
    • Coastie05
      give me some tips to make my truck look better

      By Coastie05 · Posted

      Go back to OEM wheels. 
    • newdude
      2020 Trailboss 6.2 replacement

      By newdude · Posted

      Probably not their first rodeo, so it should go as planned most likely.  Typically the service manager or tech doing the swap will put some seat time to shake it down after they get it all put back together.  We usually put 50-100mi before we hand them back so if something happens, its not after you get it.  A coolant leaks, oil leaks, a ground left off or loose, vibration, etc.     The new engines so far have been good?  There's been a couple that have popped out there again (the replacement engine) but most have been okay.  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...