I noticed we don't have this sticky on here, I think there are a lot of members that would like to do this but don't know how. I will admit I am one of them. I want to do this clean up my engine bay but I want to know how to do it with out ruining anything. So if you have done this before post away.

don't worry about ruining anything. Just use common sense (dont blast away at electrical connectors for 5 mins, etc)

everything in there is pretty tough.

Indeed. Most stuff in an engine bay is moisture, chemical and heat resistant. I would however advise keeping detergent away from bearings...I've killed a couple alternators by getting detergent in the rear bearing, and a few idler pulleys with the same.

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John
Now: '15 Toyota Prius III | 134 hp 2ZR-FXE | Silver | 36k
Now: '03 Honda CR-V AWD | Slow 4-Cylinder | Dirt | 180k
Then: '07 Ford Fusion SEL | 221hp Gen I VVT Duratec 3.0 V6 | Tungsten Silver | 150k
Then: '99 Toyota Avalon XL | 200hp 1MZ-FE 3.0 V6 | Diamond White | 189k | Sold: July 2015
Then: '11 Ford Fusion SEL | 240hp Gen II VVT Duratec 3.0 V6 | Ingot Silver | 84k | Totaled: Oct 23 '14 (Rear-Ended)
Then: '96 Buick Park Avenue Ultra | 240hp Series II L67 | Medium Dark Lichen | Bought: JAN 11 @ 135k | Accident: FEB 3 '12 | Crushed: MAR 1 '13 @ 153K
Then: '98 Pontiac Bonneville SSE | 205hp Series II 3800 L36 | Topaz Firemist | Bought: NOV '09 @ 74k | Accident: MAY 28 '10 | Crushed: MAR 15 '11 @ 84k
Then: '93 Pontiac Bonneville SE | 170hp Series I 3800 L27 | Dark Yellow Green | Bought: JULY '07 @ 92k | Sold: JULY '12 @ 118k
Then: '89 Pontiac Bonneville LE | 165hp 3800 LN3 | Medium Garnet Red | Bought: JAN '05 @ 117k | Sold: SEP 30 '07 @ 152k

We can work on that when you come over for the brakes. I've done a few.

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Mods, CAI, Gatorback SC belt, 180 deg. thermostat, sparkplugs 2 colder gapped @ .050, 3.1" MPS, intense™ PCM, AeroForce scan gauge, Flowmaster series 80 muffler, 3" Magnaflow cat , INTENSE™ Street/Strip Performance Shift Pak, 1.9:1 roller rockers, Oil Restricted pushrods, CompCam #105 springs, CompCam heavy duty spring retainers and valve locks, 17" wheels, 245/45 FirehawkGT tires,slotted rotors, cermaic pads, Wideband O2, MSD Blaster coils, MSD 8.5mm sparkplug wires, Stainless steel TOG headers, HP tuner, P&P LIM and supercharger, SSIC
Getting ready to install cowled hood, Project on hold!
Objects in mirror are loosing!

I did mine on a very hot day. So I didn't have to wrap the alternator with a plastic bag. (didn't use any soap though) Just pressure washed it, aimed the car at the sun and opened the hood. Couple hours later it was dry as a bone.

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FWI, converted low beam bulbs into high beam bulbs, 20% tint all around, MSD wires, NDK TR55 plugs, auxiliary line in, scan gauge, custom FloPro/MagnaFlow Cat back exhaust
2002 Bonneville SE

I don't wrap anything but the air filter. The alternator and every other component under the hood is subjected to massive amounts of water by means of road spray in a downpour on the freeway.

Just wash it. It's that simple.

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Click here for mod list for both cars
93 SSEi, 95 SLE (supercharged) 97 Buick LeSabre Limited
PontiacDad at WCBF '04: Cruise control? That's like surrendering!
Comprehensive guide to troubleshooting, rebuilding, and modifying Eaton Superchargers

I was scared just like you, but I even took the engine cover out and sprayed it with regular high pressured water. I cleaned it again with diesel wash which is like a greenish color that is at the self car wash. just make sure you step back when spraying, you dont want to be too close to the parts witht that high pressure water. Make sure you park the car and have it dry before you drive it alot.

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- Zin

*SOLD* 2000 SSEi | Midnight Blue Metallic | 120k
Supercharged decal 3rd brake light | Mostly stock| black leather interior | One of a Kind Tails | Custom SSEi Overlay | Painted Grille | Tints 20%(back) 35%(front)
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