miss fire when wet please help

[torquemonster]

i have a 95 chevy k1500 with the 350 and if its foggy or mist or rain it miss fires under load while idling until it dries out than it runs perfect anyone have any ideas whats wrong or how to fix it

Topic

[ScannerDanner]

plug wires, cap and rotor and you should put a set of plugs it it while your at it. you can recreate the problem with a spray bottle with water and look for the light show 🙂

[dreamer2355]

Hey Scanner Danner! Glad to see your still posting here. I often speak of your video’s to fellow techs at work (along with ETCG’s too). I love your videos! Keep them rolling!

Ever thought of putting them onto a DVD? 😉

Here is a video that also may help the OP –

[Daniel]

It is most likely your distributor cap. If it has been awhile, go ahead and change the distributor cap and rotor. It would be a good idea to get dielectric grease and put it around the base of the new distributor cap before you install it. Probably be a good idea to pull the plug wires one by one and put a bit of the grease around the inside lip of the spark plug wire boots (at both ends of the wires.) Be sure to do the wire coming from the ignition coil. While doing this make sure you inspect the entire length of the spark plug wires. Look for any damage to the insulation (rubber outside of wire)or any stiff spots in the cable (like a rigid section that does not flex as easily as the rest of the cable.) If you question the integrity of the wires go ahead and change them out. If you do change the wires make sure you do them one at a time so you can be certain they are not getting mixed up. Remember each wire has a specific spark plug it is supposed to power and if they get mixed up your engine will not run correctly.

[torquemonster]

That video helped quiet a bit thank you I’ll look for the arc

[tim]

cap rotor, wires like dan the man says,dont wait that baby L leave ya high n dry. been there……

[torquemonster]

nope left me high and wet took a bottle to it last night seems one of the spark plug wires hardened and cracked and was arcing to the block due to a missing heat shield on the pass side exhaust manifold getting new wires today and got some silicone to put around the base of the cap thanks guys helped a lot

[college man]

Thanks for the update.

[EricTheCarGuy]

Thanks for posting your fix, it will go on to help others that used the site. Thanks also for using the ETCG forum.

[ScannerDanner]

[quote=”dreamer2355″ post=40528]Hey Scanner Danner! Glad to see your still posting here. I often speak of your video’s to fellow techs at work (along with ETCG’s too). I love your videos! Keep them rolling!

Ever thought of putting them onto a DVD? 😉

Here is a video that also may help the OP –

http://www.youtube.com/watch?v=x-U9WqJfaJs%5B/quote%5D
hey thanks man! i really appreciate that.
I’ve been away for awhile. starting to get alittle overwhelmed as our good fried Eric warned me 🙂
good problems though.

[Author]

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