Jump to content

headlights blink when tilting wheel


Recommended Posts

Posted

i know this isnt engine/drivline related but i didnt know where to post it so i put it here. anyway, i noticed the headlights on my 1997 gmc go out when i tilt the steering wheel. by moving the wheel i can make them go out and come back on. the running lights are not affected, just the headlights. has anybody had this problem before? the only thing i can think of is that the wires that run through the steering column for the dimmer switch must be wearing from bending as the wheel is tilted. any ideas?

Posted

its you multi function switch in your column. they wear out from tilting your wheel . actualy its the wires are fraying. good luck either find some one to fix it or what i did was got a new column at the bone yard.

Posted

I had this problem last fall. I had installed the R&D headlight controller and the extra load from the high beams being on all the time had fried the wiring to the multifunction switch. The switch itself sells for $285 at most dealers and the online vendors on the left. It's not to hard to change, you can do it without removing the wheel. I just used a torx bit that you would usually use in a drill or changable screwdriver for the hard to reach screws. Rookie is problably right. You may be able to get a column from a salvage yard for less than the price of the switch new. Good Luck.

Posted

worktruck, what is involved in changing the switch and how long does it take? i also have the headlight conversion from painless wiring installed. did you remove yours? thanks a lot guys! i may do it this afternoon if i can find a switch.

Posted

Changing the switch is'nt bad,but you will have to remove the steering wheel to remove the 2 screws that hold the column cover together....aat least thats how it is on my '95 which has the same column.......a Ciltons manul explains the procedure preety well. :)

Archived

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

  • 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   0 Members, 0 Anonymous, 372 Guests (See full list)

    • There are no registered users currently online
  • Latest Articles

  • Posts

    • 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.  
    • 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.  
    • 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. 😉
    • 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...