I love my Chevy Chevette!
Posted: 09/21/10 04:38 PM
have 2004 coupe with the dashboard light for the a/c and fan dims and comes back. what can I do to fix this problem?
I mow my lawn and find Chevys
Posted: 09/21/10 06:32 PM
i worry that you have a major short some where in your car...
i would like you to find somebody with a proper service manual for your car... and a alternator /battery tester with an AMP clamp... hooked over the wires leading into the body... remember.. you get power from the alternator and the battery.. so just observing one is wrong...
when the lights dim... i want to know how much power in addition is being drawn... if the amp draw drops... and the amp clamp is on in the proper direction... you might have a bad connection.. but.. i really worry about an electrical fire... and that will destroy your car..
i have dealt with other shorts in cars... there is one series of gm cars... the pontiac 6000... and the sister cars.. that had a problem with the AC and defrost power blowing the fusible link... when a replacement was installed... since there was little information for what size went where.. a larger fusible link or just hooked directly to the battery post at the starter happened... a day or two later... smoke from the column.. followed my plumes of smoke and then fire.. as the whole dash boards burned up...
the one car that i was working on... that the short started before my eyes... i managed to unhook the battery... then i pulled the whole dash board... cut the harness open to find where it burned from... found that 18 inches from the ignition switch on the ac power circuit there was a place where the wire harness went over the top shield of the gas pedal... it shorted there... when i went to the junk yard looking for replacement harnesses... all the cars of that design and motor were burned... in exactly the same place.. THEY WERE NOT CORVETTES>>.
i seem to recall seeing a TSB on corvettes and camaros about a overheated terminal post under the hood... where the battery cable feeds out from to the rest of the car... so your problem might be easily fixed...
i will return with a list of TSB's...
I mow my lawn and find Chevys
Posted: 09/21/10 06:36 PM
here is the list of TSBs... these are identified for most gm cars... not just your car...
so don't freak out.. when you see the list...
Access Detailed Versions Through ALLDATAdiy.com
Automotive Recall and Technical Service Bulletin Titles for 2004 Chevrolet Corvette V8-5.7L VIN G.
TSB Number & Issue Date TSB Title
04006C FEB 06 Recall - Electronic Steering Column Lock System Defect
04043B NOV 04 Recall - Potential Control Arm Separation
TSB Number & Issue Date TSB Title
05081 FEB 06 Campaign - Steering Column Lock Warranty Extension
TSB Number & Issue Date TSB Title
03-08-44-005J JAN 10 Audio - Poor Radio Reception/Static Interference
99-08-51-007D JAN 10 Wheel - Refinishing Aluminum Wheels
09-03-10-017 DEC 09 Wheels/Tires - Replacement Wheel Weight Information
04-06-01-029D DEC 09 Vehicle - Engine Crankcase and Subsystems Flushing Info.
05-03-10-003E DEC 09 Wheels/Tires - Low Tire Pressure/Aluminum Wheels Leak
08-03-10-006B DEC 09 Wheels/Tires - Tire(s) Slowly Go Flat
00-07-30-009C NOV 09 A/T - Goodwrench®(R) Replacement Transmissions
05-06-01-034J NOV 09 Engine - Oil Leaks From Rear Cover
06-08-43-003B NOV 09 Wipers/Washers - Windshield Wiper Maintenance/Cleaning
00-03-10-006E NOV 09 Tires - Tire Radial Force Variation (RFV)
99-04-20-002F NOV 09 Drivetrain - Clunk Noise Shifting From PARK Into Gear
06-08-64-001B OCT 09 Body - Side Window Chipping Information
05-03-08-002C OCT 09 Suspension - Shock Absorber/Strut Leakage Information
06-08-50-009D OCT 09 Restraints - Passenger Presence System Information
06-00-89-031A OCT 09 Engine, A/T - Identification Information
06-08-111-004B SEP 09 06-08-111-004B - BULLETIN CANCELLATION NOTIFICATION
09-08-48-006 SEP 09 Body - Stain/Film On Windshield Glass Perimeter
09-08-56-003 SEP 09 Engine Controls - BCM Unsuccessfully Updated/No Start
02-07-30-052F SEP 09 A/T - Fluid Oil Cooler Flush
04-08-50-006C AUG 09 Interior - Seat Cover Wrinkle/Crease/Burn Info
04-06-04-047I AUG 09 Fuel System - 'TOP TIER' Detergent Gasoline Information
06-02-32-013B AUG 09 Steering - Power Steering Pump Replacement Tips
03-03-10-007E AUG 09 Wheels/Tires - OE Tire/Wheel Characteristics
99-08-64-016C JUL 09 Body - Maintaining Exterior Weatherstrip Appearance
03-07-29-004F JUL 09 M/T - Operating Characteristics
08-06-01-008A JUL 09 Engine - Drive Belt Misalignment Diagnostics
07-06-01-016B JUL 09 Engine - Noise/Damage Oil Filter Application Importance
08-03-10-004A JUL 09 Wheels/Tires - Accessory Wheel & Tire Information
05-08-51-008C JUN 09 Body - Bumps or Rust Colored Spots in Paint
07-07-30-010B JUN 09 A/T Controls - Snapshot Data Upload Information
99-01-39-004C JUN 09 A/C - Musty Odors Emitted From (HVAC) System
03-08-48-006F MAY 09 A/C - Window Defroster Contact/Tab Repair Information
06-08-44-015B MAY 09 Audio System - Noise When Using Portable Playback Unit
02-08-44-007D MAY 09 OnStar(R) - Negative Impact of Cloth/Vinyl Roofs
01-08-42-001G MAY 09 Lighting - Exterior Lamp Condensation Guidelines
07-08-49-020C APR 09 Instruments - IPC Odometer Programming Reference Guide
08-03-10-005A MAR 09 Wheels/Tires - Chrome/Steel Valve Stem Cap Precautions
00-05-22-002L MAR 09 Brakes- Disc Brake Warranty Service And Procedures
04-03-10-001E MAR 09 Wheels/Tires - Tire Puncture Repair Procedures
09-08-48-002A MAR 09 Body - Marks/Stains on Windshield When Wet
08-08-44-010F MAR 09 Navigation Radio - Diagnostic Tips
09-09-40-001 FEB 09 Restraints - Seat Belt Warning Lamp On/Buckling Issues
06-00-89-051C FEB 09 Locks - Key Code Security Rules And Information
02-08-98-002C FEB 09 Body - Hem Flange Rust Repair Information
01-07-30-036H JAN 09 A/T Control - DTC P0756 Diagnostic Tips
07-08-98-001A JAN 09 Body - Non-Approval of Clipping For Collision Repair
00-00-90-002J JAN 09 Tires - Correct Inflation Pressure Information
05-03-10-020B JAN 09 Tire - Use Of Nitrogen Gas In Tires
07-08-64-022B JAN 09 Instruments - Unnecessary Park Assist Mirror Replacement
01-06-01-011E DEC 08 Gasoline Engine - Oil Consumption Guidelines
08-08-42-005A DEC 08 Lighting - Headlamp Replacement Guidelines
04-07-30-017B NOV 08 A/T - Revised Converter Check Valve/Cooler Line Fitting
01-07-30-032E SEP 08 A/T - 4T65E Fluid Leaking From A/T Vent
00-00-89-027E SEP 08 Interior - Elimination Of Unwanted Odors
08-08-46-006 SEP 08 Audio System - XM(R) Terrestrial Repeater Changes
05-03-10-005D SEP 08 Wheels/Tires - Upsized Wheel/Tire Characteristics
02-08-42-001C SEP 08 Lighting - Headlamp Polycarbonate Lens Damage Prevention
08-08-44-028 AUG 08 Audio - Inadvertent Steering Wheel Button Activation
08-08-46-004 AUG 08 OnStar(R) - Aftermarket Device Interference Information
08-08-44-026 AUG 08 Audio System - Refurbishing Radio Faceplates/Knobs
08-07-30-035 AUG 08 A/T - Water Or Coolant Contamination Information
05-06-04-022E AUG 08 Fuel System - TOP TIER Detergent Gasoline (Canada)
03-06-04-060B JUL 08 Ignition System - New Spark Plugs & Gapping Info.
02-06-03-008D JUL 08 Charging System - Low Voltage Display/Battery Discharged
05-06-02-001A JUL 08 Cooling System, A/C - Aluminum Heater Cores/Radiators
05-03-07-009B JUN 08 Alignment - Specifications/Requirements/Recommendations
08-08-64-011 JUN 08 Mirrors - Heated Mirror Defrosting Time
08-08-44-023 JUN 08 Navigation Radio - Adaptation After Radio/Battery R&R
05-00-89-072B JUN 08 Engine/Fuel System - Oil/Fuel Additive Information
00-07-30-022D JUN 08 A/T - 4L60/65E, No Reverse/2nd or 4th Gear
08-07-30-027 JUN 08 A/T - No Movement in Drive or 3rd Gear
08-07-30-008B JUN 08 A/T - Diagnostic Information for DTC's P0894/P1870
08-07-30-026 MAY 08 A/T - Slight Vehicle Movement In Park At Start Up
08-03-10-007 MAY 08 Tires - Minimizing Damage to TPM Sensors
01-07-30-010C MAY 08 A/T - Torque Converter Replacement Information
08-03-16-003 MAY 08 Tire Monitor System - TPM Sensor Information
04-06-04-036E MAY 08 Emission - Emissions Programming Warranty Coverage
03-07-30-007E MAY 08 A/T - Gear Engagement Time Information
08-07-30-009B MAY 08 A/T - 4T80E, Slips in Gear/L/H Axle Seal Leaks
05-06-03-002C APR 08 Battery/Charging System - Electrical Diagnostics Info.
02-06-03-009C APR 08 Electrical - Battery Charging Tips/Recommendations
00-06-01-012C APR 08 Engine - Use of 'Surface Conditioning Disks'
08-08-47-001 MAR 08 Keyless Access System - Information/Operation
08-08-51-002 MAR 08 Body - TPO Fascia Cleaning Prior to Painting
08-09-41-003 FEB 08 Restraints - Usage of Used/Salvaged/Imitation Components
05-00-89-078B FEB 08 Fuel System - GM Fuel System Treatment PLUS(R) Info.
06-06-04-035A FEB 08 Fuel System - E85 Fuel Usage Precaution
06-06-01-010A FEB 08 Exhaust System - Catalytic Converter Precautions
00-08-48-005C FEB 08 Body - Vehicle Glass Distortion Information
04-03-10-012B FEB 08 Wheels - Chrome Wheel Brake Dust Accumulation/Pitting
01-05-23-001B JAN 08 Brakes - Rotor Lateral Runout Correction Information
99-08-52-005C JAN 08 Keyless Entry System - Characteristics of Operation
08-01-38-001 JAN 08 A/C - Refrigerant Recovery/Recycling/Equipment
05-06-02-002B JAN 08 Cooling System - DEX-COOL®(R) Coolant Leak Detection Dye
00-08-46-004C JAN 08 OnStar(R) - Re-establishing OnStar(R) Communications
99-09-40-005E JAN 08 Seat Belts - Seat Belt Extender Availability
02-08-46-006C JAN 08 OnStar(R) - Incorrect GPS Position Reported During Call
05-08-46-004B JAN 08 OnStar(R) - Number Incorrect/Incorrectly Assigned
04-07-30-037D NOV 07 A/T - Dexron®(R)-VI Fluid Information
02-08-46-007C NOV 07 OnStar(R) - Loss of GPS Signal/Hands Free Issues
03-00-89-008D NOV 07 Body - Metal Body Panel Corrosion Protection
05-06-01-010B SEP 07 Engine - Sealant Usage/Procedures
07-08-45-002 SEP 07 Electrical - Aftermarket Fuse Warning
03-06-03-001D AUG 07 Starting System - Starter Cranks After Key Released
05-06-04-035C JUL 07 Fuel System - E85 Fuel Usage Precautions
05-08-44-005A JUL 07 Entertainment System - Headphone Foam Pad Replacement
07-08-63-001 APR 07 Body - Polypropylene Energy Absorber Replacement
07-08-44-007 APR 07 Navigation System - Replacement Navigation Discs
02-08-42-004A MAR 07 Instruments - Reduced PRNDL Display Visibility
07-06-01-002 MAR 07 Engine - Revised Connecting Rod Bolt Torque
07-03-10-003 FEB 07 Wheels - Surface Irregularities at base of Spokes
04-07-30-013B FEB 07 Engine, A/T - Shift/Driveability Concerns/MIL ON
04-06-04-054A JAN 07 Engine Controls - Aftermarket Accessory Usage
06-00-89-054 NOV 06 Warranty - Claims Submission
06-00-89-050 NOV 06 Warranty - DTC's Required On Repair Orders
01-07-31-002B NOV 06 M/T - Hydraulic Clutch Bleeding Procedure Improvement
00-06-04-033B OCT 06 Emissions - OBDII I/M Readiness Testing
02-08-98-001C OCT 06 Body - Metal Panel Adhesive Bonding Information
04-06-05-006A SEP 06 Exhaust System - Jingling Noises On Deceleration
01-07-30-038D SEP 06 A/T - Poor Performance/MIL ON/DTC P0757
06-03-10-010 SEP 06 Wheels - Changing Procedures/Precautions
00-06-02-006D AUG 06 Cooling System - Coolant Recycling Information
06-06-04-037 AUG 06 Engine Controls - MIL Function During I/M Testing
00-03-10-002D AUG 06 Wheels Chrome Wheel Chemical Staining/Pitting/Corrosion
06-01-39-007 JUL 06 A/C - Contaminated R134A Refrigerant
04-07-30-037B JUN 06 A/T - Dexron®(R) VI Fluid Availability
03-07-30-043A MAY 06 A/T - Shift Lock Control Feature Function
06-06-04-030 MAY 06 Fuel System - E85 Refueling Station Information
03-04-20-006A MAY 06 Drivetrain - Rear Differential Fluid Leaks
06-08-45-004 MAY 06 Electrical - Instrument Panel & General Wiring Repair
06-08-67-004 APR 06 Body - Power Folding Top Tonneau Inoperative
02-08-48-001B MAR 06 Body - Urethane Adhesives for Glass Applications
02-06-04-015A MAR 06 Starting System - Engine No Start/No Crank Condition
06-03-10-004 MAR 06 Tires/Wheels - Wheel Weight Usage Precautions
02-06-05-004B FEB 06 Accessories - DTC's P0300, P1380, P1381
05-08-44-029A FEB 06 Audio System - Radio Knob Availability
04-08-46-002B FEB 06 OnStar(R) - Unable to Connect, Bulletin Cancellation
04-07-30-028A JAN 06 A/T - 4T65-E Fluid Leaks From Reverse Servo Cover
04-06-04-051B JAN 06 Fuel System - Fuel Injector Maintenance Cleaning
05-09-41-010 DEC 05 SRS - New SIR System Disabling Procedure
05-03-10-019 DEC 05 Tires - Run Flat/Zero Pressure Tire Info./Service
99-08-51-001A NOV 05 Body - Paint-Less Dent Repair Recommendations
02-01-39-004B NOV 05 A/C - New PAG Oil
05-06-04-041A NOV 05 Instruments - Erratic Fuel gauge Readings/DTC P0463 Set
01-07-30-030B OCT 05 A/T - 4L60-E/4L65-E Harsh 1-2 Upshift Diagnosis
01-07-30-041B OCT 05 A/T - Diagnosing Fluid Leaks
01-07-30-002E SEP 05 Electrical - A/T Stuck in 2nd/3rd Gear/MIL ON/DTC's
02-07-30-024B AUG 05 A/T - Cracked Case Diagnosis
03-06-04-012A AUG 05 Electrical - Harness Connection Inspection
05-02-35-004 JUL 05 Steering - Revised Steering Column Service
04-08-48-001B JUN 05 A/C - Broken Rear Window Defogger Grid Detection
05-03-10-004 APR 05 Tire Monitor System - Tire Mounting/Dismounting Cautions
00-08-46-002A APR 05 OnStar(R) - Cellular Antenna Replacement Parts
05-03-08-004 MAR 05 Suspension - Revised Front/Rear Ball Joint Torque Specs.
03-05-24-001A MAR 05 Brakes - Wheel Cylinder Inspection Guidelines
00-08-46-003B FEB 05 Instruments - GPS System Performance Degradation
03-09-41-003A FEB 05 Restraints - Air Bag System Diagnostics
04-06-03-016 DEC 04 Battery - Specification Label Clarification
03-08-98-002A OCT 04 Body - Squeeze Type Resistance Spot Welding/Equipment
01-01-38-006D SEP 04 A/C - R-134a System Flushing Procedures
04-08-68-002 SEP 04 Cruise Control - Increasing Set Speed
04-07-31-005 AUG 04 M/T - Clutch Pressure Plate Wear Indicator Adjustment
01-03-10-009A JUL 04 Wheels - Plastic Wheel Nut Covers Loose/Missing
04-07-30-025A JUL 04 A/T - 4L60-E/-4L65E No Shift/Slipping/Fluid Leaks
04-08-51-003 JUL 04 Body - Rear Hatch Blistering
02-06-03-010A JUL 04 Battery - Parasitic Drain
04-06-00-047 JUN 04 Fuel - Top Tier Detergent Gasoline Information
04-06-04-045 JUN 04 Instruments - Oil Life Monitoring System
04-06-05-007 JUN 04 Exhaust System - Intermediate Pipe Now Available
04-08-98-001 MAY 04 Body - Metal Panel Bonding Additional Material
04-07-30-023 MAY 04 A/T - 4L60-E/4L65-E New Pump/Seal/Case/Service
04-06-04-031 APR 04 Fuel System - Difficult Vehicle Refueling
04-06-01-013 APR 04 Engine - Serpentine Drive Belt Wear Information
04-02-35-003 FEB 04 Steering - Steering Wheel/Column Service Revisions
04-08-50-005 FEB 04 Interior - Seat Back(s) Twisting
04-07-30-006 FEB 04 A/T - 4L65E, 4L60E, 4L60, 200-4R Oil Pump Spring
04-01-37-001 JAN 04 A/C - Control Knob Replacement Availability
03-08-42-012 NOV 03 Lighting - Auto Lamps Operate Erratically/Inoperative
03-07-30-056 NOV 03 A/T - 4L60-E Oil Pump Identification
01-01-38-013A OCT 03 A/C - Unnecessary Compressor Replacement
02-06-04-022A OCT 03 Engine Controls - PCM Reprogramming/Data line Diagnosis
03-00-89-021 JUL 03 Instruments - DIC Perceived Fuel Economy Settings
01-01-39-003A JUL 03 A/C - Catastrophic Compressor Failure Debris Removal
03-07-30-027 JUN 03 A/T - Oil Cooler Flushing Frequently Asked Questions
89358 NOV 88 Battery - Diagnosis and Charging
the one in bolt might be it... i will have to search in a little while.. check back tomorrow evening....i should have found the link i was thinking about by then...
i seem to recall it does mention a problem much like your description...
I mow my lawn and find Chevys
Posted: 09/21/10 11:14 PM
i looked around... cannot find what i was thinking of..
but.. follow the positive battery cables... they go to a stud with a nut to clamp several of them together.. they then go off to different areas...
disconnect the negative cable... pull the negative cable away from any chance of it coming into contact with the post... now it should be safe to unscrew the nut and wire brush the post and the ring terminals..
if you find the post overheated. discolored or plastic melted.. you will need to replace it..
i cannot remember where i saw this info... but its sticking in the back of my head as a possible problem on your car...
you still need to monitor your battery and charging system current flow with a DC AMP CLAMP ... this will take 2 people .. one watching the gauges on the amp clamp.. one watching the dashboard and listening.. or monitoring the voltage on the cooling fan...
I love my Chevy Chevette!
Posted: 09/22/10 11:01 AM
thanks for the ideas
now i have someplace to look