loss of power when raining

At night open the hood, take a spray bottle of water out, start engine and try spritzing the motor around the plug wires etc. If there is an intermittent short it might arc and show you where it is.

"toyo" wrote: > My 2000 Camry loses power in heavy rain. When it looses power, > there is a severe vibration undrneath the driver's seat (or at > least it feels like it's coming from there), and the car > sounds like a motorboat. Took it to Toyota and they couldn't > find anything wrong. Replaced the plugs and wires, and no > results > Any ideas what this can be? > Thanks for the help

thanks for the advice. alredy did this, and nothing showed. this really is a mindbender....

I have a '97 and I sometimes feel the same vibration when I drive through heavy rain or puddles. I haven't noticed a decrease in power though, it's usually a very low speeds. I thought that maybe the water was getting trapped around the catalytic converter and the vibration was caused by it boiling or something.

A possibility is a leaking connector on one of the sensors. You could disconnect each one, seal with dielectric grease and reconnect. While you're at it I suggest looking for a cut or pinched wire where water could cause a short. HTH, davidj92

in heavy rain . . . the car sounds like a motorboat

----------------- All one can do is guess without having more hands on input - so here's my guess: You drive through deep water in heavy rain, water seeps into a low lying part of the exhaust filling it partially with water and causing the vibration under your seat and motorboat noise. Hey, it's only a guess.

it could be spark plug wires.