Mechanics

WON'T START IN WET WEATHER

1993 Volvo 240

Electrical problem
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.
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Johnmasonbailey
April 9, 2010.




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

Tiny
Rasmataz
Apr 23, 2010.


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