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12-01-2019
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#1 |
 
Join Date: Jul 2019
Location: Holly Springs, NC
Posts: 90
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1990 ZR1 Cruise Control
The cruise in my 1990 ZR1 does not engage or work. Any suggestions. Im still very new to corvettes.
Sent from my SM-G975U using ZR-1 Net Registry mobile app
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George Zugg 1990 DRM 500 ZR1 build#952 [SIGPIC][/SIGPIC] 
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12-02-2019
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#2 |
 Join Date: Jun 2005
Location: CenCoast California
Posts: 898
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Re: 1990 ZR1 Cruise Control
Welcome to the ZR1 Net, "Zugg ZR-1".
After reading the above and your other post about no low beams, it sounds like you are going to do some DIY service work on some electrical items. Step 1) Buy a Factory Service Manual. They are available from Zip Products.
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Hib Halverson Technical Writer former owner 95 VIN 0140 current owner 19 VIN 1878 |
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12-02-2019
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#3 |
Join Date: Oct 2017
Location: TX
Posts: 2,057
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Re: 1990 ZR1 Cruise Control
Hib has the #1 step exactly correct. Some would differ, but I think a complete FSM is mandatory.
That step behind us, as you are having headlight dimming and cruise control activation issues, the common thread is the control on the steering column. Possible wiring connections or broken wires? 
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Kenny 1990 #442 
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12-02-2019
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#4 |
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Join Date: Jul 2015
Location: Anchorage, Alaska
Posts: 8
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Re: 1990 ZR1 Cruise Control
ZuggZR-1 - Welcome aboard as a new ZR-1 owner! I had the same issue in my 1991 ZR-1 this summer. Look under the round module on firewall on the driver's side. Underneath there is a control cable leading to the Cruise Control Module that fits into two slots. Make sure the cable is engaged in those slots, it can slip out and cause the Cruise Control to not engage when you press the stalk button. Will send pictures if you need them.
Last edited by Greatlandguy; 12-02-2019 at 04:19 PM. |
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12-05-2019
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#5 |
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Join Date: Jun 2019
Location: Wisconsin
Posts: 10
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Re: 1990 ZR1 Cruise Control
Also the third brake light on most vehicles of the era is linked to the cruise control. If the bulb burns out the cruise will not work. It was a way of warning the driver that the bulb has burned out.
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12-05-2019
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#6 |
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Join Date: Aug 2016
Location: Spring Hill, FL
Posts: 127
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Re: 1990 ZR1 Cruise Control
Check the brake light switch , some have vacuum lines ,that have an o-ring that goes bad . Its good to have a mighty-vac tool to check for leaks in vacuum lines .
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12-05-2019
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#7 |
  
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,120
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Re: 1990 ZR1 Cruise Control
Make sure the brake light switch is centered on the brake pedal arm and not askew. If it is not centered the cruise will not engage.
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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 |
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12-06-2019
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#8 |
Join Date: Jul 2012
Location: Allentown, PA
Posts: 308
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Re: 1990 ZR1 Cruise Control
Cruise control stopped working on my'93 many years ago. Turned out the vacuum hose that runs through the firewall and under the dash had been rubbed thru by the clutch pedal. The hose had been improperly routed from the factory.
Sent from my SM-G975U1 using ZR-1 Net Registry mobile app
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'95 ZR-1, aqua/gray, #167 368 LPE/Haibeck, Web cams, Stainless Works headers, B&B Fusion exhaust, 18" Fikse wheels, Alcon brakes, lowered. 491 SAE RWHP. |
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12-06-2019
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#9 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,685
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Re: 1990 ZR1 Cruise Control
Quote:
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12-15-2019
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#10 | |
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Join Date: Jul 2019
Location: Holly Springs, NC
Posts: 90
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Re: 1990 ZR1 Cruise Control
Quote:
Thanks George Sent from my SM-G975U using ZR-1 Net Registry mobile app
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George Zugg 1990 DRM 500 ZR1 build#952 [SIGPIC][/SIGPIC]
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Linear Mode
