SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSVOLVO1987240 DL, 4D SEDAN, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISFUEL INJECTION SYSTEM - BOSCH LH JETRONIC IITESTINGFUSES, GROUND CONNECTIONS & CONNECTORS
1987 Volvo 240 DL, 4D Sedan, Standard

Fuses, Ground Connections & Connectors

1987 Volvo 240 DL, 4D Sedan, StandardSECTION Fuses, Ground Connections & Connectors
  1. Check ground connections on inlet manifold. Make sure wires are correctly connected and not loose. Poor connections can cause many fault symptoms.
  2. Check fuses for pump relay and tank pump. The pump relay fuse is an in-line fuse in the engine compartment. There are two of them. The tank pump fuse is fuse no. 4 and is in the fuse box.
  3. Check the connectors for the air mass meter, air control valve, knock sensor and coolant temperature sensor. Make sure connectors are correctly connected and not loose.
  4. Make sure that the knock sensor and coolant temperature sensor connectors are not interchanged. The knock sensor wires are green and the coolant temperature sensor wires are yellow.
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.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.