1997 Volkswagen Jetta Weather Combination Very Cold Moist Air Car Will Start

1997 VOLKSWAGEN JETTA
179,000 MILES
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When the weather is a combination of very cold and moist air, the car will not start. It will turn over but still not start.The car has no problem in cold dry weather or warm moist weather. You can pop start it with the clutch if you are lucky enough to park on a hill.
Oct 28, 2012 at 8:44 PM
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EXOVCDS
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If it pop starts every time it does not start with the key, then the problem is the ignition switch.

Take note of the Instrument Cluster Warning lights when cranking... the oil & battery lights should remain ON while cranking and
go out once the engine starts. If those lights go OUT while cranking, then the Ignition Circuit is losing power because of a faulty switch.

Otherwise... Ignition Components (over time) in the engine bay get sensitive to moisture that "shorts-out" the ignition spark. Replace
Spark Plug Wires, Car & Rotor & Ignition Coil if older than 5 to 8 years, as preventative maintenance.

Thomas
Dec 20, 2016 at 12:10 PM
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ASEMASTER6371
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As usual, Tom is dead on. I agree 110%

Roy
Dec 20, 2016 at 12:10 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.