[my884runner]

Just wondering why my truck will barely run when it rains, or when i try to start it after it has rained?
The engine seems to stumble, i can floor the accelerator and it just putts along...until it gets above 3200rpm ,then it seems like I just hit the turbo button and takes off.

Anyone have any suggestions?

Thanks folks!!

 

[Nick]

some part of your ignition system is cracked, could be the distributor cap, wires, ignition coil.

moisture is getting in when its real wet out and its causing the problems

 

[Rycam]

There should be a thin gasket that sits around the distributor and helps seal the cap. If it it gone or thrashed, buy a new one at the dealer.

Also, use as many Factory TOYOTA tune-up parts as possible. Cap and rotor etc...