Dash Cluster problem! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Resmondo · 08-09-2009, 04:36 PM

ok when the headlights are off the blinkers work fine. when i turn the headlights on they both lights up constant but only the left blinker will work and the gauge lights do not come on and the water temp guage will only work when the headlights are on. Ive checked the circuit on the back and all the connections seem fine.

jay6891 · 08-09-2009, 04:42 PM

Recheck your grounds. Clean terminals and try again. Sounds like that may be the problem

Resmondo · 08-09-2009, 05:27 PM

all grounds seem to be good. i did find that the cluster lights are on. the blinkers are the only problem. when the lights are not on they work fine just when i turn the lights on they both come on. the left will blink very slowly and the right will just dim

69nova · 08-09-2009, 09:18 PM

On our year model trucks, when you have a light out, the dash signal indicator stays lit to let you know that you have a light out. As said previously by others a ground will give you the same symptoms as a light being blown or not grounded.

Resmondo · 08-09-2009, 09:35 PM

so make sure i have a good ground to the cluster?

69nova · 08-10-2009, 09:57 AM

When I say light out, I mean any one of your signal lights and on my truck thats 4 per side because my sidemarkers blink as well. The driverside lights will cause the left turn signal indicator to stay on when you pull your lights on and passenger=right. Make sure that you have a good ground to everything. I had a similiar problem and I had to add a ground strap from the bed to the frame.

Longhorn Man · 08-15-2009, 01:49 PM

side markers, tail lights, and backup lights would not do this. This feature is to allert you that the turn signal is not working. Frequently, if the front parking light/turn signal light assembly isn't grounded very well, it'll back feed and light up the indicator... seems more common on 69 and 70 models.

Resmondo · 08-15-2009, 08:39 PM

wow grounding the lights did the trick.. I didnt have the original light harnesses so i put some others that just plugged in...shoulda known they had to be grounded thanks. now my guage lights work too!

Longhorn Man · 08-15-2009, 11:49 PM

sweet
morbid curiosity... what year truck?

Resmondo · 08-16-2009, 10:34 AM

its a GMC 1970 1500
http://www.cardomain.com/ride/3205069
I have pictures of both before and after on there

KEL · 08-17-2009, 09:27 AM

just went through the same issue with
my 1972 GMC. backfeeding through the
temp gauge annd high beam indicator.
both would pulse with the turn signal,
and the temp gauge would climb in
increments until burried. i was missing
a screw holding the printed circuit to the
back of the cluster.
all set now. so easy once you know
where to look.

Resmondo · 08-17-2009, 09:39 AM

yea i wouldof never expected a non grounded light. My temp guage and fuel guage still arent working. i think i just dont have the temp guage hooked up right because its an aftermerket guage, but my fuel guage just stays at the bottom. is that a bad guage or sender? how can i check that?

08-09-2009, 04:36 PM	#1
Resmondo Registered User Join Date: Aug 2009 Location: Pensacola, Florida Posts: 14	Dash Cluster problem! ok when the headlights are off the blinkers work fine. when i turn the headlights on they both lights up constant but only the left blinker will work and the gauge lights do not come on and the water temp guage will only work when the headlights are on. Ive checked the circuit on the back and all the connections seem fine.

08-09-2009, 04:42 PM	#2
jay6891 Car Knocker Join Date: May 2001 Location: jefferson,arkansas Posts: 664	Re: Dash Cluster problem! Recheck your grounds. Clean terminals and try again. Sounds like that may be the problem __________________ 68 c-10,91 sportside bed,350 .030 over,4 bolt,10-1 comp,2.05 intake/1.94 exhaust,1.6 Harland Sharp roller rockers,edelbrock rpm cam and intake w/750 carb, 700r4, 3.73 gears,Jacabbs Electronic Igntion w/Accel HEI distributer and super coil. ZR-1 roll pan, filled tailights. Blazer tank. Hidden hitch. 2 1/2" Flowmaster 40's. Parts bought but not installed>> ford 9" posi with disc. CCP front and rear lowering kit 4/5. Cab corners,foor boards,rockers, cab braces, Phatom grill, Painless wiring kit.

08-09-2009, 05:27 PM	#3
Resmondo Registered User Join Date: Aug 2009 Location: Pensacola, Florida Posts: 14	Re: Dash Cluster problem! all grounds seem to be good. i did find that the cluster lights are on. the blinkers are the only problem. when the lights are not on they work fine just when i turn the lights on they both come on. the left will blink very slowly and the right will just dim

08-09-2009, 09:18 PM	#4
69nova Registered User Join Date: Jan 2009 Location: virginia Posts: 49	Re: Dash Cluster problem! On our year model trucks, when you have a light out, the dash signal indicator stays lit to let you know that you have a light out. As said previously by others a ground will give you the same symptoms as a light being blown or not grounded.

08-09-2009, 09:35 PM	#5
Resmondo Registered User Join Date: Aug 2009 Location: Pensacola, Florida Posts: 14	Re: Dash Cluster problem! so make sure i have a good ground to the cluster?

08-10-2009, 09:57 AM	#6
69nova Registered User Join Date: Jan 2009 Location: virginia Posts: 49	Re: Dash Cluster problem! When I say light out, I mean any one of your signal lights and on my truck thats 4 per side because my sidemarkers blink as well. The driverside lights will cause the left turn signal indicator to stay on when you pull your lights on and passenger=right. Make sure that you have a good ground to everything. I had a similiar problem and I had to add a ground strap from the bed to the frame.

08-15-2009, 01:49 PM	#7
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: Dash Cluster problem! side markers, tail lights, and backup lights would not do this. This feature is to allert you that the turn signal is not working. Frequently, if the front parking light/turn signal light assembly isn't grounded very well, it'll back feed and light up the indicator... seems more common on 69 and 70 models.

08-15-2009, 08:39 PM	#8
Resmondo Registered User Join Date: Aug 2009 Location: Pensacola, Florida Posts: 14	Re: Dash Cluster problem! wow grounding the lights did the trick.. I didnt have the original light harnesses so i put some others that just plugged in...shoulda known they had to be grounded thanks. now my guage lights work too!

08-15-2009, 11:49 PM	#9
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: Dash Cluster problem! sweet morbid curiosity... what year truck?

08-16-2009, 10:34 AM	#10
Resmondo Registered User Join Date: Aug 2009 Location: Pensacola, Florida Posts: 14	Re: Dash Cluster problem! its a GMC 1970 1500 http://www.cardomain.com/ride/3205069 I have pictures of both before and after on there Last edited by Resmondo; 08-16-2009 at 10:36 AM.

08-17-2009, 09:27 AM	#11
KEL 72 GMC Join Date: Feb 2008 Location: Wells, Maine Posts: 534	Re: Dash Cluster problem! just went through the same issue with my 1972 GMC. backfeeding through the temp gauge annd high beam indicator. both would pulse with the turn signal, and the temp gauge would climb in increments until burried. i was missing a screw holding the printed circuit to the back of the cluster. all set now. so easy once you know where to look.

08-17-2009, 09:39 AM	#12
Resmondo Registered User Join Date: Aug 2009 Location: Pensacola, Florida Posts: 14	Re: Dash Cluster problem! yea i wouldof never expected a non grounded light. My temp guage and fuel guage still arent working. i think i just dont have the temp guage hooked up right because its an aftermerket guage, but my fuel guage just stays at the bottom. is that a bad guage or sender? how can i check that? Last edited by Resmondo; 08-17-2009 at 09:39 AM.



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