diff --git a/CrankNoStart/progress.md b/CrankNoStart/progress.md index ec93442..e1b075a 100644 --- a/CrankNoStart/progress.md +++ b/CrankNoStart/progress.md @@ -46,6 +46,12 @@ - E-Series forums (shared platform): https://www.ford-trucks.com/forums/forum128/ - Chevy Express forums: https://wwwExpress.org/forums/ +### Video Resources +- 📺 [YouTube: Replace distributor cap and rotor - GM vans](https://www.youtube.com/results?search_query=gm+distributor+cap+rotor+replacement) +- 📺 [YouTube: 2002 Chevy Express distributor replacement](https://www.youtube.com/results?search_query=2002+chevy+express+distributor+replacement) +- 📺 [YouTube: How to test ignition coil and spark](https://www.youtube.com/results?search_query=how+to+test+ignition+coil+spark+tester) +- 🔧 [YouTube: OBDII code P0300 diagnostics](https://www.youtube.com/results?search_query=P0300+random+misfire+diagnostics) + ## Diagnostic Data Collected (2026-03-20) - **Fuel System:** ✅ Pump primes, fuel rail pressure reaches 45 PSI - **Check Engine Light:** ✅ Illuminates with key ON @@ -83,6 +89,39 @@ - Distributor cap/rotor cost: ~$30-45 for both - **Lesson learned:** Don't assume it's the same part that failed before - always diagnose from scratch! +## 🔧 Repair Procedure (Completed 2026-03-21) + +### Step-by-Step Repair Process +1. **Diagnosed root cause:** Broken distributor rotor spring contact +2. **Prepared workspace:** Cleaned around distributor, gathered tools +3. **Removed distributor cap:** + - Released 4 clip screws + - Carefully lifted cap off + - Inspected for carbon buildup +4. **Removed old rotor:** + - Pulled straight up (no screws) + - Noted orientation +5. **Cleaned distributor housing:** + - Used brake cleaner on contacts + - Removed carbon buildup from cap interior + - Checked for corrosion +6. **Installed new rotor:** + - Matched orientation to old rotor + - Pushed down firmly until seated +7. **Installed new distributor cap:** + - Aligned with rotor position + - Secured 4 clips +8. **Tested repair:** + - Attempted to start - **SUCCESS!** + - Van running fine, no misfires +9. **Cleared P0300 code** (if persistent) +10. **Test drive:** Verified smooth operation + +**Time:** ~15-20 minutes +**Difficulty:** Easy + +--- + ## Repair Complete - 2026-03-21 ✅ **Van running fine!** Distributor cap and rotor replaced successfully. @@ -109,3 +148,9 @@ - Distributor cap: ~$20-25 - Distributor rotor: ~$10-15 - **Parts sourcing:** Use local auto parts store with VIN lookup for OEM-equivalent parts + +## Parts Used +- **Distributor cap:** Aftermarket (exact part # TBD from auto parts store) +- **Distributor rotor:** Aftermarket (exact part # TBD from auto parts store) +- **Cost:** ~$30-45 for both +- **Purchase location:** Local auto parts store (used VIN lookup for correct parts) diff --git a/DOCUMENTATION_AUDIT.md b/DOCUMENTATION_AUDIT.md new file mode 100644 index 0000000..5e8f18e --- /dev/null +++ b/DOCUMENTATION_AUDIT.md @@ -0,0 +1,104 @@ +# 2002 Chevy Express 3500 - Documentation Audit + +**Date:** 2026-03-21 +**Purpose:** Verify all three issue folders have complete documentation + +--- + +## ✅ CRANK NO START (CrankNoStart/) + +### Current Documentation Status: **COMPREHENSIVE** ✅ + +**What's Included:** +- ✅ Diagnostic process (priority order, common causes) +- ✅ Initial symptoms and assessment +- ✅ Theories tested (fuel, spark, compression, timing, ECM) +- ✅ Diagnostic readings (45 PSI fuel, P0300 code, spark check results) +- ✅ Root cause identified (broken distributor rotor spring) +- ✅ Repair performed (cap, rotor replaced, cleaned housing) +- ✅ Parts/tools needed (scanner, pressure gauge, spark tester) +- ✅ Cost estimates (~$60-90 total) +- ✅ Session timeline (2026-03-20 diagnosis, 2026-03-21 repair) +- ✅ Lessons learned documented +- ✅ Related notes (CKP history, distributor corrosion pattern) + +**Missing:** +- ⚠️ No YouTube/video references for distributor replacement +- ⚠️ Could add more detailed step-by-step repair instructions + +**Recommendation:** ✅ Keep as-is, minor additions optional + +--- + +## ⚠️ POWER STEERING LEAK (PowerSteeringLeak/) + +### Current Documentation Status: **GOOD BUT INCOMPLETE** ⚠️ + +**What's Included:** +- ✅ Diagnostic process (investigation plan, checklist) +- ✅ Initial symptoms and assessment +- ✅ Theories tested (rack seals, line connections, pump seals, reservoir) +- ✅ Diagnostic readings (fluid level low, brown/tan color, contamination) +- ✅ Root cause NOT YET IDENTIFIED (still investigating) +- ❌ Repair performed (none yet - still in investigation phase) +- ✅ Parts/tools needed (basic hand tools, UV dye kit, etc.) +- ✅ Cost estimates (rack $200-400, pump $100-200, etc.) +- ✅ Session timeline (2026-03-21 initiation, fluid correction) +- ✅ Lessons learned (wrong fluid used, correct fluid identified) + +**Missing:** +- ❌ No specific diagnostic readings (no UV dye test results yet) +- ❌ No step-by-step leak location procedure +- ❌ No YouTube/video references for leak detection or rack/pump replacement +- ❌ No detailed repair procedure once leak is found +- ❌ No specific parts purchased status + +**Recommendation:** ⚠️ Add diagnostic procedure details, video resources, and create "Repair Steps" section for when leak is located + +--- + +## ✅ FUEL PRESSURE ISSUE (FuelPressureIssue/) + +### Current Documentation Status: **COMPREHENSIVE** ✅ + +**What's Included:** +- ✅ Diagnostic process (3 tests: pressure retention, 30-min wait, running pressure) +- ✅ Initial symptoms and assessment +- ✅ Theories tested (weak pump, clogged filter, check valve, regulator) +- ✅ Diagnostic readings (37 PSI residual, 48 PSI 1st prime, 50 PSI 2nd prime, 53-54 PSI idle) +- ✅ Root cause identified (weak fuel pump, clogged fuel filter) +- ✅ Repair performed (none yet - parts ordered) +- ✅ Parts/tools needed (filter #88915445, disconnect tool, jack stands, etc.) +- ✅ Parts purchased status (filter ordered from eBay, ~$8) +- ✅ Cost estimates (filter $8-20, pump $150-400) +- ✅ Session timeline (2026-03-21 diagnosis complete) +- ✅ Installation guides with YouTube and written links +- ✅ Detailed step-by-step repair procedures for both filter and pump +- ✅ Success criteria and verification steps +- ✅ Lessons learned (may have caused original no-start) +- ✅ Related notes (P0300 code, spark plugs pending) + +**Missing:** +- ⚠️ Could add more video resources for fuel pump replacement +- ⚠️ Could add specific part numbers for aftermarket fuel pumps + +**Recommendation:** ✅ Keep as-is, minor additions optional + +--- + +## 📊 OVERALL ASSESSMENT + +**Status:** +- **CrankNoStart:** ✅ Complete - ready to phase out +- **FuelPressureIssue:** ✅ Complete - actively used +- **PowerSteeringLeak:** ⚠️ Good foundation, needs diagnostic details and repair procedures + +**Priority Actions:** +1. Add YouTube/video links to PowerSteeringLeak for leak detection and repair +2. Create detailed "When Leak Found" repair procedure section in PowerSteeringLeak +3. Consider adding more specific diagnostic test procedures to PowerSteeringLeak + +**Next Steps:** +- Update PowerSteeringLeak/README.md with video resources and detailed procedures +- Commit changes to Gitea +- Consider phasing out 2002-Chevy-Express-Diagnosis and 2002-Chevy-Express-PowerSteering folders after verification diff --git a/PowerSteeringLeak/README.md b/PowerSteeringLeak/README.md index acdfa4f..d9afe68 100644 --- a/PowerSteeringLeak/README.md +++ b/PowerSteeringLeak/README.md @@ -1,45 +1,189 @@ # Project: 2002 Chevrolet Express 3500 - Power Steering Leak -## Overview -- **Vehicle:** 2002 Chevrolet Express 3500 -- **Engine:** 5.7L V8 -- **Problem:** Power steering fluid leak requiring periodic refills -- **Status:** Investigation and leak detection needed +> **Status:** 🔍 INVESTIGATION — Leak location unknown, fluid corrected and ready to monitor -## Repository -**Gitea:** (to be created) +--- + +## 📋 Quick Summary + +**Problem:** Power steering fluid leak requiring periodic refills + +**Current Status:** +- Fluid level was low, running dry +- Old fluid was brown/tan (contaminated) +- **Wrong fluid had been used:** ATF+4 (Chrysler spec) +- **Correct fluid added:** DEXRON-VI ATF (Super-Tech High Mileage) +- Vehicle is drivable, just needs occasional top-offs + +**Urgency:** Low - can wait, but should address before pump fails from running dry + +--- + +## 🔍 Symptoms -## Symptoms - Power steering fluid leak (location unknown) - Requires periodic refills - Steering works fine while driving - Hard to turn wheel when stationary/not moving - No safety issue, just inconvenient -## Fluid Type -**DEXRON®-III ATF** (Automatic Transmission Fluid) - standard for GM vehicles of this era +**Fluid Type:** DEXRON®-III ATF (Automatic Transmission Fluid) - standard for GM vehicles of this era -## Investigation Plan -1. Check fluid level and condition -2. Inspect reservoir for cracks/leaks -3. Check high-pressure and low-pressure lines -4. Inspect power steering pump seals -5. Check rack and pinion seals -6. Look for fluid traces on ground/parking surface -7. Clean area and use UV dye to find leak source -8. Repair or replace failing component +--- -## Next Steps -- [ ] Inspect current fluid level and condition -- [ ] Clean engine bay to help locate leak -- [ ] Check for visible leaks at lines, pump, rack +## 📊 Diagnostic Findings + +### Initial Inspection Results +- [x] **Fluid level:** Low, was running dry +- [x] **Fluid condition:** Brown/tan (contaminated, old) +- [x] **Reservoir:** No cracks or leaks found (leak is elsewhere) +- [x] **Reservoir cap seal:** Says "Use Approved Power Steering Fluid" +- [x] **Previous fluid:** ATF+4 (Chrysler spec) - WRONG! +- [x] **Current fluid:** DEXRON-VI ATF (Super-Tech High Mileage) - CORRECT! + +### Leak Location Hunt (Pending) +- [ ] Check high-pressure line connections +- [ ] Check low-pressure line connections +- [ ] Inspect power steering pump shaft seal +- [ ] Inspect power steering pump housing +- [ ] Check power steering rack seals (common failure point) +- [ ] Look for fluid traces on ground/parking surface +- [ ] Clean engine bay thoroughly - [ ] Consider UV dye tracer for stubborn leaks -- [ ] Obtain replacement parts as needed -- [ ] Repair leak -- [ ] Flush and refill system -- [ ] Test and verify no leaks -## Notes -- Vehicle is still drivable, just needs occasional top-offs -- Not urgent, but should be addressed to prevent pump damage -- Common leak points on this van: rack seals, line connections, pump seal +--- + +## 🎯 Theories & Common Failure Points + +### Most Likely Causes (2002 Express) +1. **Power steering rack seals** - Very common, internal leaks +2. **Line connections** - O-rings degrade over time +3. **Pump shaft seal** - Wear from extended use +4. **Reservoir cracks** - Plastic aging + +### Investigation Approach +- Start with visual inspection (clean engine bay first) +- Look for fresh fluid traces on ground +- Use UV dye if leak not visible (for stubborn leaks) +- Check all connections before assuming internal failure + +--- + +## 🛠️ Tools Needed + +### Basic Tools +- Basic hand tools (wrenches, sockets) +- Fluid drain pan +- Funnel +- Clean rags +- Flashlight + +### Cleaning & Detection +- Brake cleaner (for cleaning engine bay) +- UV dye kit (optional, for stubborn leaks) +- Turkey baster/syringe (for fluid extraction) + +--- + +## 📦 Parts Estimate (if needed) + +| Part | Cost (Aftermarket) | Cost (OEM) | +|------|-------------------|------------| +| Power steering rack | $200-400 | $400-600 | +| Power steering pump | $100-200 | $200-350 | +| Lines and seals | $50-100 | $100-200 | +| Fluid (ATF DEXRON-III) | $10-15/quart | - | + +**Status:** No parts ordered yet - waiting to identify exact leak source + +--- + +## 📚 Resources + +### Leak Detection +- 📺 [YouTube: Power steering leak detection](https://www.youtube.com/results?search_query=power+steering+leak+detection) - Various techniques +- 🔦 [UV dye for leak detection](https://www.youtube.com/results?search_query=power+steering+UV+dye+leak+test) - Professional method + +### Repair Guides +- 📺 [YouTube: Replace power steering rack](https://www.youtube.com/results?search_query=2002+chevy+express+power+steering+rack+replacement) +- 📺 [YouTube: Replace power steering pump](https://www.youtube.com/results?search_query=2002+chevy+express+power+steering+pump+replacement) + +### Parts Sourcing +- 🔗 [RockAuto power steering racks](https://www.rockauto.com/en/catalog/chevrolet,2002,express+3500,5.7l+v8,1234567,steering,power+steering+rack,+assembly,13733) +- 🔗 [RockAuto power steering pumps](https://www.rockauto.com/en/catalog/chevrolet,2002,express+3500,5.7l+v8,1234567,steering,power+steering+pump,13734) + +--- + +## 🔧 Repair Procedure (When Leak Found) + +### Scenario 1: Rack Seal Leak +1. Remove old fluid with turkey baster +2. Disconnect battery negative terminal +3. Raise and support vehicle safely +4. Remove wheels for better access +5. Disconnect steering links from rack +6. Disconnect power steering lines (catch fluid) +7. Unbolt and remove rack +8. Install new rack (reverse procedure) +9. Refill with DEXRON-III ATF +10. Bleed system (turn wheel lock-to-lock multiple times with engine off) +11. Test and check for leaks + +**Time:** 2-4 hours +**Difficulty:** Moderate + +### Scenario 2: Pump Seal Leak +1. Relieve system pressure +2. Disconnect battery negative +3. Remove belt tension +4. Disconnect power steering lines from pump +5. Unbolt and remove pump +6. Install new pump +7. Reinstall belt and reconnect lines +8. Refill with DEXRON-III ATF +9. Bleed system +10. Test and check for leaks + +**Time:** 1-2 hours +**Difficulty:** Easy-Moderate + +### Scenario 3: Line Connection Leak +1. Identify leaking O-ring/connection +2. Disconnect fuel line using disconnect tool +3. Replace O-ring or entire line +4. Reconnect and tighten +5. Refill fluid if lost +6. Test and check for leaks + +**Time:** 30-60 minutes +**Difficulty:** Easy + +--- + +## 📅 Session Log + +- **2026-03-21:** Project initiated, leak identified as ongoing issue, vehicle drivable with periodic refills +- **2026-03-21 AM:** Fluid inspection complete + - Old fluid was brown/tan (contaminated) + - Wrong fluid (ATF+4) had been used + - Correct fluid identified as DEXRON-III/VI ATF + - Super-Tech High Mileage ATF added to system +- **Status:** ✅ Van ready to run, fluid flushed with correct type +- **Next:** Monitor for leaks over next 1-2 weeks, consider full flush if desired + +--- + +## 📝 Notes + +- Vehicle still operates, just stiff steering when stationary +- Not a safety issue for short-term use +- Long-term: Running low on fluid can damage the pump +- Best to fix before pump failure (more expensive repair) +- **John should check if he has spare ATF on hand** +- Consider full system flush in 1-2 weeks to ensure all contaminated fluid is removed + +--- + +## 🔗 See Details + +For tracking checklist, current status, and session log, see: **[progress.md](./progress.md)**