- New car scanner
- New AC Delco Rapidfire 5
- Evans Waterless Coolant
- PCV Vacuum Pumps
- An interesting tire/wheel "comparison/calculator"
- those with out the secondaries?????
- Pic of spare parts I got with my ZR-1 Purchase, injector questions ---
- Serpentine belt change
- Anyone familiar with TCI handheld controllers for auto?
- Front shock change
- Bad battery connector bolt
- which OEM ignition coil??
- FX3 Ride Control Billstein stock settings
- MAP sensor issue
- 90 zr1 no start
- Evans waterless coolant
- What Is It?
- European tail light harness
- Oil Temp Sensor
- ok the ultimate stupid ? pcv valves.....
- GS calipers
- Are these injectors original?
- ZF6 oil you use
- Twin Turbo ZR-1 musing
- E85
- Amp draw shows 0.0 from (-) post to (-) cable...?
- Fine Tuning: Inj. Offset v BATT
- The Rest of the story!
- Power window
- Underside of shift plate fastners
- Sound System Upgrade...Wow! What a difference.
- Under Hood Lighting
- Interior LED group buy PICS !!!!!
- Sealing ECM module access after chip swap?
- NOT the end of the story.
- Underhood fuse block?
- Normal Volts?
- Pulling the trigger on New Wheels
- Options for H/L controller module...
- Dead battery
- Is there a preferred OBD1 scan tool for our group? ---
- DC battery for light bulbs
- WATER /METH INJ Dyno Run results
- For tuners, a Holy Grail of Injector voltage Offset
- The Prom
- Girlfriend passes Calif. Smog
- Optima or Odyssey ... close dimensions, will it fit? ---
- are there any videos ......
- E85 calibration for emissions testing
- 2 Bolt vs 4 bolt Main Caps and Nitrided Stock Crank ... strong? ---
- Inop readiator fans
- Crankshaft Position Sensor Air Gap Clearence
- What kind of Amsoil?
- headers and fuel question
- 1/2 mile WOT vs. tire pressure?
- Alternator Problems
- Speedo correction
- 315/35/17 BFG T/A g-Force Drag Radial 2?
- How much boring inside the cylinder liners?
- Seat side bolster removal
- LED Lights for your Clamshell Underhood
- Re-located air dam sides???
- DC resistance of the AC compressor clutch coil?
- Removing Radio/Speakers for New Owners
- Leftover Parts
- Anyone care to guess...
- Water pump or hose? Thoughts.
- Bright days driving into the sun
- Winter Projects
- Not sure where these hoses go and if there is a hose missing.
- 'Occasional' loping idle...
- GM to revive LT5 name
- ECM codes
- Bose Speaker Amps/radio face
- Battery trouble
- hose questions??
- Repair Shop?
- new ZR-1 owner needs help
- Sec port vacuum; dedicated?
- Failed emissions, high HC and NOx.
- Knock sensor picture?
- Diagnose - 2,500 rpm Stumble Miss - 1991 8k mile ZR-1
- Delco Bose AUX Input soldered connection...
- synthetic oil for LT 5
- Plenum Pull Advice, Starter Rebuild, MAP Sensor Info
- Clutch?
- LT5 Engine Paint
- Need some glass date codes!
- white noise sound behind your center dash console?
- engine cuts off intermittently
- Mobil 1 High Mileage
- Power Mirrors are inop
- Valet Key for New Owners
- Service / Repair Mesa, AZ
- Heater Hose Connectors on Thermostat Housing
- AC Vacuum Pump and Oil
- Replacement radio.
- Automotive Principles
- Will a bose radio system from a 1993 install in a 1991 ZR-1?
- PCV Vacuum connection to dual connecter
- ZF6 Reverse Lockout Question
- Automotive principals 101
- Interesting oil test write-up
- Sprung a leak
- Put a drain in your D44
- Callaway Exhaust Center Section
- Filter list
- What MODS Have You Done To Your ZR-1??
- 95 ZR1 Oil Leak Question
- Before I break something - cargo light
- Relays Needed
- Part 3 Windshied A Pillar Weatherstripping redux
- Part 1 Windshield A pillar weatherstripping REDUX
- secondarries
- Headlights clicking
- Secondary Remove guide?
- Slave Cylinder Replacement
- PF-9 flilter
- DRM Coil overs, spring rubbing half shaft
- Accessory Console Wiring
- DTC 32 EGR
- 90 Accessory Plug???
- Leaf spring separation?
- Would injector problems show up on an Engine Dyno? ---
- Rear Assembly Panels
- Largest ever?
- Back side grounds
- Starter upkeep?
- Does the ZR-1 Require a special tow hook or other towing requirements? ---
- Chassis Lube
- What say you, Graham?
- Starting Issues
- Best scanner / laptop software?
- Electrical starting system shutdown-could be nuclear meltdown
- vibration from gear shift lever
- B & M Ripper Shifter
- WHat to do when you cant wait for ZFDOC trans plates???
- Had a quick question about choking on deceleration.
- Ordering New Wheels & Tires and need some guidance
- NON ZR-1 Technical Help needed
- Antenna Issues
- Transmission fill / drain plug question
- Gage Cluster
- Air Injection Reaction Pump unplugged?
- Dynamat Question
- WAZOO - Plenum Pull Work Day, Burgers, & Cruise - This Sunday in Reisterstown, MD
- Alternator killer
- 1990 lumbar bladder replacement
- What now?
- California ZR-1 ????
- IAT Relocation?
- Two holer?
- FX-3 Control Module programming
- DIS Failure symptoms?
- Need Moral Support - Starter Seized Post Plenum Pull
- IH to head; Gasket Failure
- Vibration under acceleration/Loss of power
- 1991 ZR1 - Possible Issues
- Quick question on the 90 A/C
- DIY Vacuum Line Replacments
- Power Switch light
- Is the tensioner for the serpentine belt supposed to move a lot? ---
- Power Chip or module
- Wierd coolant shenanigans?
- Lingenfelter packages
- Engine Wiring Harness
- Initial thoughts on Pete's Intake/Exhaust cam combo
- power switch problem
- Ignition Coil posibilities for the ZR-1
- Exhaust versus Power versus HP
- Fidanza FlyWheel
- C6 Wheels/Tires
- Air conditioning
- Spark Plug Removal Question
- For the mathematicians
- Dielectric grease
- Tips / how to change oil?
- LT5 PS pump pressure?
- Which headers?
- FYI & Help: Cadillac CTS Spare Won't Work
- Shelby wheel question
- 1990 LT5 emissions fail
- DIS module bent pin
- Anyone got vids of porting their hardware?
- Fuel injectors
- Exhaust question again / different
- will c4 zr1 spare fit a stock c5
- WTB and information on scanner
- How To: restore door-handle courtesy lights
- Snap-on MT2500 scanner??
- Weatherstripping
- Draining the fuel tank
- Anyone use Mishimoto silicon hoses?
- Cleaning engine parts.
- Windshield Tear Offs?
- oil temperature rises too high
- Clutch slave
- Can a dual mass flywheel come apart / get worn? ---
- Tech 1 scanner owner manual PDF's
- Removing Rocker Panels
- Engine loses power when starting off.
- Head gasket failure
- Tony D's Project corner (Heat extraction vents)
- Tony D's Project corner (Oil catch cans)
- Tony D's Project corner (Oil catch cans) Part 2
- Removing Cam Cover Bolts the Hard Way
- Anyone set up to spray test injectors?
- 1990 ZR-1 cranks but won't start
- aftermarket exhaust system question
- Jack stand placement
- For ScottFab- Ball Joint removal
- "Off the hook" NO start.
- Gear ratio choice
- Anyone have any ideas about early 90' ZR-1???
- Drop in Dewitt radiator install pics......
- Few problems on a 1990 ZR1
- Alternative source for cheap functional Bose speaker amplifiers
- 500 CI LT5
- Anyone got '90 Owner's manual in .pdf?
- Air Temp Sensor
- Standalone ems questions
- A/C Went Out
- Need thread pitch / spec / dimensions...
- Plenum Done!
- It took nine years
- Mouse Fortress?
- Camber Brace Help
- Starting issue
- Easiest way to remove CDM Radio Module ??
- Unknown strange engine noise
- Looking for ECC info
- secondary port throttle solenoid
- 6l80e or 6L90e for our ZR-1's?
- Need replacement clutch kit for '94
- Coolant issue
- The Dreaded No Start
- Need an ac compressor
- Alright!, new car and first troubleshooting!!!!
- Fuel Metering
- Loose fasteners
- o2 Sensor extension harness
- Heavy popping in left rear (U's? Half shafts?)
- Replacing a windshield question...
- Secondary Actuators, Upside down or Not
- SPAL FANS and 2 ROW DEWITT'S TECH Notes
- A/C question
- A/c pressure conformation.
- A/C Blower Fan
- Napa Oil Filter # 1324
- White 1995 ZR1