1993 Volvo 240 Repair Question
1993 Volvo 240 Won't start in wet weather
1993 Volvo 240 4 cyl Two Wheel Drive Automatic 215000 miles
Vehicle will not start in wet weather. Runs very well when weather is dry.
Answer
Wet or Dry check if you're getting fuel or spark do below
Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it
If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems
with compression and valves opening and closing at the wrong time/broken or jumped timing
belt/chain