85 ranger high beam issue


JustinM

Member
Joined
Feb 9, 2016
Messages
31
Reaction score
0
Points
6
Transmission
Automatic
I just bought an 85 ranger and drove it for the first time tonight. The low beams seem to be working fine but they aren’t very bright so while I was driving I switched to the high beams and they came on and lit the road a heck of a lot better. However, after about a minute of driving with the high beams on both headlights cut off completely, scared the crap out of me cause There are no street lights on the roads where I live. I could switch back to low beams and they would come back on. It seems like something is getting too hot with the high beams on or there is a short somewhere. Anyone have any ideas?
 


Rock Auto 5% Discount Code: 173A8B749AB83C Expires: January 1, 2020

RonD

Well-known member
Joined
Jun 2, 2012
Messages
14,025
Reaction score
736
Points
113
Location
canada
Vehicle Year
1994
Make / Model
Ford
Transmission
Manual
Low beams are off when High beams are on, just FYI

Yes, it could be the main light switch connections are heating up, or the contact in the Multi-function switch(turn signal stalk) for the High beams

The main light switch would be my guess, but multi-function switch is close 2nd
 

bobbywalter

TRS Technical Staff
TRS Technical Advisor
TRS Banner 2012-2015
TRS 20th Anniversary
Joined
Aug 9, 2007
Messages
19,157
Reaction score
527
Points
113
Location
woodhaven mi
Vehicle Year
1988
Make / Model
FORD mostly
Engine Size
BIGGER
Transmission
Automatic
2WD / 4WD
4WD
Total Lift
sawzall?
Tire Size
33-44
My credo
it is easier to fix and understand than "her"
with these old trucks there is a main lug that is a spade that feeds the system.


i run a set of relays as close to the headlights and batteries as possible(with current engine right from alternator lug) to feed the headlights with and trigger them with the original wiring...10 g to the power side of the relay and 12 to the load side.

really brightens up the standard glass lights enough to warrant the effort.
 

adsm08

Senior Master Grease Monkey
Supporting Member
Ford Technician
TRS 20th Anniversary
Joined
Sep 20, 2009
Messages
32,167
Reaction score
1,471
Points
113
Location
Dillsburg PA
Vehicle Year
1987
Make / Model
Ford
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Manual
2WD / 4WD
4WD
Tire Size
31X10.50X15
with these old trucks there is a main lug that is a spade that feeds the system.


i run a set of relays as close to the headlights and batteries as possible(with current engine right from alternator lug) to feed the headlights with and trigger them with the original wiring...10 g to the power side of the relay and 12 to the load side.

really brightens up the standard glass lights enough to warrant the effort.

I need to do this soon. I put Sylvania ZXEs in and my last three dimmer switches have died from heat.
 


Top