fastimes35th

my motor was really dirty and i washed it at the car wash and now my car is running like crap spitting and sputtering does anybody have any idea what couls be causing this

HitmanLS1

iTrader: (16)

May have got some sensor's wet did you crank it as soon as you finish washing it?

low_boosted

iTrader: (16)

Did you cover anything up when spraying it down?

fastimes35th

no i just pulled up to the car wash and it was running fine left it running popped the hood sprayed it down now it runs like crap

fastimes35th

no it was running while i was washing it i thought that was what u were supposed to do but i guess not

98silvertacrbn

iTrader: (106)

water under the plug wires! pull them off and dry them

WYATT318MOPAR

iTrader: (28)

I would check the most likely easy spots to cause problems, the main harness plugs where the coil harnesses plug in, TPS, MAP, MAF. Unplug them and check for moisture wreaks totally hell on the Ohm's and resistance that all these work off of. You can take a q-tip and try to dry them out or just spray in some WD-40 to displace the moisture. Hope that helps you out, could have even forced some water into the ends of the plug wires up on the coil end causing them to breakdown.

LS6427

iTrader: (2)

Holy **** man.

Not to scare the **** out of you, but you asked. If you sprayed your engine while it was up to normal operating temps, you could have a big giant paperweight now. Cool water on hot metal warps the hell out of it.

Now, I wash my engine every 3-4 months. But your supposed to start it cold, let it idle for like 5-10 minutes just to get it warm so the detergents work a little better, then hose it down CAREFULLY. I still accidentally get some spray on my PCM, coils and other sensors...for about a whole day my alternator spikes into the red so when I drive it I have to keep the headlights on, fogs on and A/C blasting to keep the volts out of the red while it dries under the hood.

But my engine is perfectly fine.

Hopefully, its just an electrical misfire issue because something is wet. Any SES light?

NEVER spray a hot engine.


.

raysadude

iTrader: (11)

+1

my car does the same thing after a hard rain, i pulled em off and dry em, and everything back to normal

Mumbles

iTrader: (5)

How many miles are on your car? Maybe its time for a new set of plugs and wires. Good time to upgrade to some NGK plugs and MSD Superconductor Wires too. Just a thought.

Scira

iTrader: (4)

Might want to check to see if you have any vacuum leaks as well. Water sucked in can cause alot of problems too

fastimes35th

brand new motor and wires just washed it because it was all greasy and dirty

RaggedRides

iTrader: (8)

Isn't an LT1 is it?

fastimes35th

no its a brand new ls3 416 from late model racecraft it was running great until i washed the engine bay this sucks

fastimes35th

i just put a new motor in my car drove it for a couple of days wanted to clean up my engine bay so i went to the car wash left the car running popped the hood sprayed the motor off like i have done a thousand times now the car is spitting a sputering but in high rpms it kinda clears out has anyone ever had this problem

fccs

iTrader: (26)

Your suppose to leave the car running WHILE you do that.. that way you can hear if your getting water in a area that isnt good. And NEVER use a strong powerwash, just lightly spray water inside the bay because of wires and such that may not like getting water pounded up they're ***.

shaun

its a good idea to use dielectric grease on both ends of the wires that will help keep moisture out.

johnLs1camaro

iTrader: (28)

I would just let it dry off good, and everything will be fine.

Green69firebird

I had a loose plug wire do that to me.

CranMaro99

iTrader: (10)

LOL. You get a big old L O L.