having a problem, need some input - Toyota Nation Forum : Toyota Car and Truck Forums

gaak · 01-07-2005, 04:58 PM

ok guys, this is prolly gonna come across as a stupid question but every time it is wet out and my engine is cold i experience a sudden loss in power around the 2.3 to 3,000 rpm range . as soon as the engine warms up fully it stops doing this, and just now my check engine light came on. my dad thinks it is bad plug wires. what do you guys think? anyone experience this ever? what did it turn out to be? any help would be much appreciated. oh yeah the engine is a 5sfe and it's got about 145,000 miles on it.

terrastrife · 01-07-2005, 07:01 PM

cant help ya here but did you even check the plugs/leads? theyre not hard to do

if you have a CEL then go to... erm... i dont know where.. every says autozone but i wouldnt have the foggiest if theres one in your area :o

Luckynumber5 · 01-07-2005, 07:39 PM

try replacing your distributor nd rotor, mine did the exact same thing until it warmed up, i replaced tham and the old cap and rotor were pretty messed up, it ran like new after i replaced them

fredk · 01-07-2005, 07:46 PM

pull the codes

Diehonda · 01-08-2005, 08:42 AM

Not to be an arse but let it warm up.

Tune up?? Plugs, wires, filters,etc??? Do you run your heat or ac while the engine is cold and driving down the road. that will cause lag itself.

Luckynumber5 · 01-08-2005, 10:19 AM

heres the thing Diehonda, that should not cause lag at all even if the engine is cold, it should still run fine and his is obviously not running well

Diehonda · 01-08-2005, 10:50 AM

somewhat. Mine runs strange if I just jump in and go when it is cold and have the heat on. But once it warms up everything is fine. Plug wire replacement helped greatly though.

04sev6camry · 01-08-2005, 11:03 AM

if your CEL is on u can take it to autozone and they will pull the codes for u and tell u what they mean

fredk · 01-08-2005, 05:02 PM

i have found autozone pretty good at getting the codes, but as far as them telling you much more than that ya gotta remember they are parts people, nobody at the store has ever been to any kind of driveability school, factory or not

ruoknow · 01-10-2005, 11:25 AM

difference in cold and hot car?
suspect there is a clogged PCV valve!

gaak · 01-11-2005, 04:55 PM

next dumb question, what exactly is the pcv valve?