Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSFORD1987ECONOLINE E350, VAN WINDOW, 7.5 LREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMCEC DIAGNOSING & TESTING
1987 Ford Econoline E350, Van Window, 7.5 L
CEC Diagnosing & Testing
1987 Ford Econoline E350, Van Window, 7.5 LSECTION CEC Diagnosing & Testing
- Diagnosis & Testing
- Quick Test
- Diagnosis By Symptom Test
- Circuit Tests
- How To Use Circuit Tests
- Test A - No Start
- Test B - Vehicle Battery
- Test C - Reference Voltage
- Test D - Air Charge Temperature (Act) Sensor
- Test E - EVP, EGRC & EGRV
- Test F - Engine Coolant Temperature (ECT) Sensor
- Test G - Map/BP Sensor
- Test H - Knock Sensor
- Test I - Throttle Position Sensor (TPS)
- Test J - Pressure FDBK EGR (PFE) & EGR Valve Regulator (EVR)
- Test K - Vehicle Speed Sensor
- Test L - EGR Valve Position (EVP) & EGR Valve Regulator (EVR)
- Test M - Neutral A/C Switch
- Test O - Brake On/Off (Boo) Switch
- Test P - Power Steering Pressure Switch (PSPS)
- Test Q - 5.0L EFI Fuel Control
- Test R - 2.3L EFI Fuel Control
- Test S - 2.9L, 3.0L & 4.9L EFI Fuel Control
- Test T - Fuel Pump Circuit (Inertia Switch)
- Test U - EGR On/Off Check
- Test V - Air Management System
- Test W - Canister Purge (CANP) Check
- Test X - Idle Speed Control (By-Pass Air)
- Test BB - Shift Indicator Light (SIL)
- Test Cc - Wide Open Throttle
- Test Dd - Converter Clutch Override CCO
- Test Ee - Dynamic Response Test
- Test Ff - Ignition Diagnostic Monitor (IDM)
- Test GG - Spark Timing Check
- Test HH - No Codes/Codes Not Listed
- Test II - System Check
- Test JJ - Erratic Ignition
- Test KK - AXOD Transaxle
- DRIVEABILITY Test
- Wiring Diagrams
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.