Dirty Motor [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Dirty Motor


HDINNC
03-21-2005, 09:40 PM
Is it OK to wash the motor on my truck? I am concerned about where my Juice plugs in getting wet. How should I go about cleaning the engine?

burkm
03-21-2005, 09:44 PM
I've wonder this myself. someone chime in that knows.

Diesel Dragon
03-21-2005, 10:38 PM
It's ok to wash just make sure that the engine is cold, and I would cover up any electrical item's as much as possible. Don't use a high pressure washer on it, just some water and maybe some gunk engine cleaner for the heavy stuff, then rinse it and then a soapy rag to get the nooks and crannies.

Be careful around the electronics on the pass valve cover, there's even a sticker on it I think that says not to use a pressure washer on it. Just cover it with some plastic glad sandwich bags or bigger ones if you need to, and the same with your Juice connection's, and a bag over the alternator too.

Washed mine a few times but last year I got too much water on my Juice connections and truck wouldn't start, but after I unhooked juice and put factory plugs together it started. Let the juice dry out for a couple of days and it was good again.

Good Luck and cover up the sensitive stuff as much as possible.

DD

keepin' it
03-21-2005, 10:41 PM
Silicone grease all your plug seals and never pressure wash/steam clean any area with plug connectors. In addition, keep the above away from u-joints and any other seals. Your life will be happier.

Duramax Dually
03-21-2005, 10:55 PM
I agree, with Diesel Dragon, I have had my truck engine and undercarriage steam cleaned 1 time thus far. I told the operator what to avoid before he got started, I covered all exposed electrical devices with ziplock bags and aluminum foil. The steam cleaner was very good. If you are having someone do it, just explain to them what to avoid. I think steam cleaning is the best method, washing the truck engine and subjecting it to doses of water is not recommended. To much potential for water penetrating electrical connectors.

Blkvoodoo
03-21-2005, 11:18 PM
the FICM ( box on pass side valve cover ) has a breather vent on it, cover it well before washing, ( black plug looking thing ) do not use high pressure.

I'd suggest using Simple Green and a garden hose sprayer. works well for my off road truck.

I have replaced a few FICMs that I suspect were hosed down by unknowing detailers from the used car lots.

also, don't soak the filter element, it's easy to shoot water into the air box.

Kevin

fannypack
03-22-2005, 01:13 AM
I wash mine all the time using a 3500 psi washer, and yet to have a problem, however stay away from the alternator. If you get it wet it won't charge until completely dry.

I disagree that a plain hose is better. my pressure washer probably uses 1 gallon of water whereas a hose can be a lot more water quanitity. If you don't blast the electrical at close range, you won't have a problem. I've been doing it for years, and never had a problem yet..

aka108
03-22-2005, 08:36 AM
Wash off engine and engine compartment every time vehicle is washed. Use the left over wash stuff in the bucket and hose it down with fine spray. Done it for years on all vehicles. No problem.

StraitDiesel
03-22-2005, 09:58 AM
I typically just use a multi purpose solvent with a moist wash rag and wipe down the entire engine compartment. After I've done that, I wipe it down with just a wet rag and a dry rag.

When I am done, the engine compartment is clean and dry, and I don't have to worry about messing anything up. It's a little more time consuming and tedious than just hosing it down, but well worth the time in my opinion.

Dan