Intake manifold cleaning in 5 minutes or less:

http://www.youtube.com/watch?v=oet4qWeZuYA

This might not be an authentic Red Green method, since no duct tape is used.

Sweet. Never seen that method!

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2006 CRD GDE ECO/HOT Tunes and TCM swap and HD Mopar Torque Converter, EHM
2003 Jetta TDI 155K all stock
1957 International V8 Diesel

Looking at the FSM, removing the Liberty CRD intake manifold/head cover is a major pain, which includes discharging the A/C system and timing belt removal and replacement. I might try sticking my See Snake into the manifold for a look.

Real Red Necks don't use PPE (Personal Protective Equipment) like gloves and Safety Glasses.

He will still need to use some cleaner to remove the rest of the carbon.

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2006 Pearl Green CRD
Magnaflow 2 1/2" Cat Back
KJ Extra Leg Room Brackets, Carter Lift Pump, V6 Airbox, ORM
Fuel cooler, Oil Separator, Progard 7
Gauges EGT Boost Trans Temp Oil Pres, Michelin LXT AT2 245 70 R16
7,000# Draw Tight hitch, PML EX Deep Trans Pan
Centrifuge, SunCoast, Transgo, RAM TCM, InMotion Stage 2
Wife's 99 TDI VW Beetle

No goggles!