# 1990 F150 Won't Start in Wet Weather

**URL:** <https://community.cartalk.com/t/1990-f150-wont-start-in-wet-weather/45848>\
**Category:** Maintenance/Repairs\
**Tags:** ford, f150\
**Created:** [March 10, 2010, 4:40am UTC](https://community.cartalk.com/t/1990-f150-wont-start-in-wet-weather/45848 "2010-03-10T04:40:17Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![kquirolo](https://avatars.discourse-cdn.com/v4/letter/k/9de0a6/32.png) [@kquirolo](https://community.cartalk.com/u/kquirolo)\
**Post date:** [March 10, 2010, 4:40am UTC](https://community.cartalk.com/t/1990-f150-wont-start-in-wet-weather/45848/1 "2010-03-10T04:40:17Z")

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I have a 1990 F150 with a 6 cylinder engine. It has about 70,000 miles and runs great…when it is not raining. It cranks over great but does nothing…being a part replacer and not a mechanic I replaced the distributer cap, spark plug wires, and rotor… no luck…but now that it has stopped raining in Albany California… it runs great… what should I replace now? This happened once before and maybe I wasn’t paying attention, but I think it ran fine after the wiring changes even in the rain.

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**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\
**Post date:** [March 10, 2010, 1:39pm UTC](https://community.cartalk.com/t/1990-f150-wont-start-in-wet-weather/45848/2 "2010-03-10T13:39:44Z")

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There’s probably an ignition coil in that system somewhere too that you’ll want to take a look at.

You can find out - get a mister bottle with water in it, run the truck and start misting with water. Whatever disrupts the engine when you mist it is a pretty good culprit.

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**Author:** ![missileman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/missileman/32/1366_2.png) [@missileman](https://community.cartalk.com/u/missileman)\
**Post date:** [March 10, 2010, 3:05pm UTC](https://community.cartalk.com/t/1990-f150-wont-start-in-wet-weather/45848/3 "2010-03-10T15:05:37Z")

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The most common cause of this condition is spark plug wires. Fords especially are prone to this condition.

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**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\
**Post date:** [March 10, 2010, 3:09pm UTC](https://community.cartalk.com/t/1990-f150-wont-start-in-wet-weather/45848/4 "2010-03-10T15:09:43Z")

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Right but s/he said the wires are new.