ground problem
Thread Starter
|
New User
Joined: Feb 2002
Posts: 1
Likes: 0
From: Willacoochee USA
ground problem
My lights dim down when the truck is at idle, the radio quits playing, and even the blinkers, don' blink as fast as normal, I was told I must have a bad ground, I have checked many of the grounds, any suggestions about places to check?
Postmaster
Joined: Apr 2000
Posts: 2,838
Likes: 6
From: SD
ground problem
[font color=red size=2]My '73 F100 390 does the same thing. At idle the heater fan slows down, the wipers slow down and the lights dim a little bit (radio is fine thought). I've owned it for the past 6 years and it hasn't caused me any trouble yet. I've even replaced the alt, regulator and the battery, with no change. I wouldn't worry about it, if I were you. - But the radio quitting would get irritating...
Check your grounds, make sure they are clean and making good contact. Check where the neg battery hooks to the engine and the grounding strap from the rear of the engine to the firewall. If that doesn't help, have the alt, batt and regulator tested.
Just a thought.
Marty
Check your grounds, make sure they are clean and making good contact. Check where the neg battery hooks to the engine and the grounding strap from the rear of the engine to the firewall. If that doesn't help, have the alt, batt and regulator tested.
Just a thought.
Marty
New User
Joined: Jan 2008
Posts: 0
Likes: 24
ground problem
So, What Rpm is the engine idling at ?
350-400-500-550-600 ?
Dennis
Please Don't Ask Me Any Tough Questions As:
"I'm Saving My Memory For When I Develop Alzheimer's"
78 F-150 429CJ,Silver
w/Explorer Pkge.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon
350-400-500-550-600 ?
Dennis
Please Don't Ask Me Any Tough Questions As:
"I'm Saving My Memory For When I Develop Alzheimer's"
78 F-150 429CJ,Silver
w/Explorer Pkge.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon
Post Fiend
Joined: Feb 2000
Posts: 5,130
Likes: 8
From: Brea CA
ground problem
My ’68 doe's the same thing but the radio still plays. The large diameter pulleys don’t help at idle speed, the alt. just turns too slow. In addition to what has been already suggested, check the harness connector that plugs into the regulator. Try unplugging it and plugging it in again a couple of times to make a better connection. Also check for good grounding where the regulator bolts on to the inner fender. Don’t run it with the regulator not bolted down.
Barry
Barry
Thread
Thread Starter
Forum
Replies
Last Post
powerstroker100
1999 - 2003 7.3L Power Stroke Diesel
7
Apr 15, 2025 03:14 AM
Bayer-Z28
General Automotive Discussion
2
Mar 22, 2010 09:12 PM
unclerico
Electrical Systems/Wiring
5
Mar 2, 2010 10:57 AM
