• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

Replay buzzing from passenger side causing the bronco to buck and sometimes die

Renny_D

New Member
Joined
Feb 14, 2013
Messages
22
Reaction score
0
Points
1
Vehicle Year
1984
Make / Model
Ford
Transmission
Manual
I recently started getting a weird problem. There is a buzzing like a relay buzzing coming from the passenger side. When this happens the car misses and bucks and has actually died on me a few times. The buzzing will continue for a few seconds after I shut the car off. Any ideas what this is. I saw on another post where someone said they had the same problem and it was a relay behind the kick panel. They stated they just pulled the relay and the problem stopped. Any ideas on what the hell this is?
 


dirtymike

Active Member
Supporting Member
U.S. Military - Veteran
Joined
Dec 30, 2010
Messages
527
Reaction score
111
Points
43
Age
61
Location
knoxville TN
Vehicle Year
1987
Make / Model
Ranger lwb
Engine Type
2.9 V6
Transmission
Manual
2WD / 4WD
4WD
Total Lift
1 inch spacers
Tire Size
P23575R15
My credo
Do unto others then Split-probasti me et chognuisti me
Look behind the glove box. The door sides squeezes past open to swing out and down. A black box mounted to a steel mounting plate with wires on a connector. Mine buzzed but i never had a issue with it, just noise.
 

Renny_D

New Member
Joined
Feb 14, 2013
Messages
22
Reaction score
0
Points
1
Vehicle Year
1984
Make / Model
Ford
Transmission
Manual
So I disconnected the relay and the issue stopped. Can anyone tell me what the relay is for? It does seem like the engine while running smoother is now down a bit on power.
 

Renny_D

New Member
Joined
Feb 14, 2013
Messages
22
Reaction score
0
Points
1
Vehicle Year
1984
Make / Model
Ford
Transmission
Manual
image.jpg
This is relay, the one at the Top right?
 

Mechrick

Member
Joined
Jan 10, 2020
Messages
86
Reaction score
54
Points
18
Location
Las Vegas
Vehicle Year
1984
Make / Model
Bronco II
Transmission
Manual
The EEC power relay and fuel pump relay are up there on the older ones. Usually when a relay starts occilating like that it's a weak ground...
 

Renny_D

New Member
Joined
Feb 14, 2013
Messages
22
Reaction score
0
Points
1
Vehicle Year
1984
Make / Model
Ford
Transmission
Manual
Mechrick thanks, weak ground to the relay or weak ground on the battery ground?
 

Mechrick

Member
Joined
Jan 10, 2020
Messages
86
Reaction score
54
Points
18
Location
Las Vegas
Vehicle Year
1984
Make / Model
Bronco II
Transmission
Manual
Weak ground to the PCM. The PCM grounds at the negative battery cable through a black connector.
 

Sponsored Ad


Sponsored Ad

Top