AC blower issue - ZR-1 Net Registry Forums

Mahogaraunch · 10-02-2014

Hey all;

I've got a 90 ZR1 and the other day I had a unique situation occur which I cannot seem to rectify. When I started the car, the AC and blower came on full blast. The outside temp gauge displayed " -- " and the clock was stuck at " 1:00 ".

Nothing on the climate control panel works, and the radio now does not work so the clock cannot be adjusted.

This all happened at the same time so I image its linked to the same issue, whatever that may be.

Has anyone had a similar issue, and what do you think the issue could be?

Thanks.

GOLDCYLON · 10-02-2014

Unplug the battery and see if the condition persists.

2nd thing I would check is the battery. C4s do strange electrical things if they dont have 12.69 Volts. Its cost nothing to get it load tested.

If neither of these solve the problem it could be other issues.

Mahogaraunch · 10-02-2014

Ive got a new battery on there, but I will unplug and re-connect and see if the issue persists.

Thanks.

-=Jeff=- · 10-02-2014

Check the FSM (Factory Service Manual) Ito see if those items share any fuses or fusible links and then check those

GOLDCYLON · 10-04-2014

Any update?

Mahogaraunch · 10-04-2014

Battery disconnect proved fruitless. I don't have a FSM so cant trace it that way. Spoke to Vette Works in Port Perry ON and I will take it down next week weather permitting. The guy who runs the place seems knowledgeable so hopefully he can pin the issue down.

GOLDCYLON · 10-04-2014

Quote:

Originally Posted by Mahogaraunch

Battery disconnect proved fruitless. I don't have a FSM so cant trace it that way. Spoke to Vette Works in Port Perry ON and I will take it down next week weather permitting. The guy who runs the place seems knowledgeable so hopefully he can pin the issue down.

Did you verify your "new battery" does not have an internal short under load. Must auto parts stores will load test it for free. Other than that is could be an AC controller issue/failure above the gas pedal on the Fire wall.

Mahogaraunch · 10-05-2014

Thanks. I'll bring it to the Vette shop and post the results.

10-02-2014	#1
Mahogaraunch Join Date: Apr 2011 Location: Ontario Posts: 38	AC blower issue Hey all; I've got a 90 ZR1 and the other day I had a unique situation occur which I cannot seem to rectify. When I started the car, the AC and blower came on full blast. The outside temp gauge displayed " -- " and the clock was stuck at " 1:00 ". Nothing on the climate control panel works, and the radio now does not work so the clock cannot be adjusted. This all happened at the same time so I image its linked to the same issue, whatever that may be. Has anyone had a similar issue, and what do you think the issue could be? Thanks.

10-02-2014	#2
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,155	Re: AC blower issue Unplug the battery and see if the condition persists. 2nd thing I would check is the battery. C4s do strange electrical things if they dont have 12.69 Volts. Its cost nothing to get it load tested. If neither of these solve the problem it could be other issues. __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V

10-02-2014	#3
Mahogaraunch Join Date: Apr 2011 Location: Ontario Posts: 38	Re: AC blower issue Ive got a new battery on there, but I will unplug and re-connect and see if the issue persists. Thanks.

10-02-2014	#4
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,169	Re: AC blower issue Check the FSM (Factory Service Manual) Ito see if those items share any fuses or fusible links and then check those __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978

10-04-2014	#5
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,155	Re: AC blower issue Any update? __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V

10-04-2014	#6
Mahogaraunch Join Date: Apr 2011 Location: Ontario Posts: 38	Re: AC blower issue Battery disconnect proved fruitless. I don't have a FSM so cant trace it that way. Spoke to Vette Works in Port Perry ON and I will take it down next week weather permitting. The guy who runs the place seems knowledgeable so hopefully he can pin the issue down.

10-05-2014	#8
Mahogaraunch Join Date: Apr 2011 Location: Ontario Posts: 38	Re: AC blower issue Thanks. I'll bring it to the Vette shop and post the results.