Install Vehicle: 99 Dodge Ram 1500 318 **same engine used in Dakota's, Ram vans, Durango, Grand Cherokee**
Reason for install: vehicle was loosing oil but no visible oil leak was found, vehicle had jumpy idle, vehicle had sluggish throttle response
Dodge TSB 09-05-00 was issues for this problem; but they just install the same plenum intake plate so it will happen again.
Kit ordered: Hughes Engine V8 INTAKE GASKET HUG 3226 and Hughes Engine PLENUM REINFORCEMENT KIT HUG 7712 from
Hughes Engines Kit comes with new intake bolts & bolts for plate.
Other Parts purchased for install: 185 thermostat and coolant intake by-pass hose (hose tends to leak if re-installed so installing a fresh one is just better)
Tools needed: full set of metric and standard wrenches and sockets; make sure you have extensions (you'll need em),
INCH POUND TORQUE WRENCH, blue lock tight, black RTV
The 318 before we started:
Disconnect battery & remove coolant overflow bottle
Remove ail filter, plenum and intake tube
Disconnect throttle cable bracket at throttle body
Remove four (4) fan blade bolts push fan back towards water pump. This is to gain clearance for fan shroud removal.
Remove windshield washer fluid bottle from shroud. Remember there are two (2) table inside shroud that need to be released to pull bottle upwards.
Slide fan shroud upwards then out. This is to give room to stand in engine compartment to make to easier.
Remove belt
Remove alternator leads and alternator
Remove ac support, brackets and bolts
Remove IAC, Map, and throttle position sensor connectors
Remove throttle body, gasket, and four (4) bolts
Remove AC compressor connectors (2) Remove AC compressor and swing to passenger side fender (4 bolts)
Remove cross bracket (support for ac lines & air box)
Remove Injector connectors (8)
Remove heater core coolant supply hose
Drain coolant: drain plug turns 1/4 turn clockwise then turn and pull out
Bleed fuel rail pressure with shrader valve then remove fuel rail with Injectors intact
(tie the rail out of the way)
Remove all wiring and associated line, plug wires and upper radiator hose
Remove coolant bypass hose (a new one will be installed on re-assembly)
Plug injector holes to stop debris from getting into cylinders
**Clean all dirt & debris from crevices: if not it will fall into engine**
Remove all intake bolts & remove intake
Place rag or towel on top of valley to prevent gasket debris from falling into valley. Remove all old gasket material.
Place intake on clean surface
-notice the oil vapor stains from vacuum leak in intake
Remove fifteen (15) bolts and lower plate
-note the oil that was pooling inside the intake
Clean intake toughly inside and out: don't use a wookie or scotch-bright: you will get high/low spots and intake will leak
Install new intake plate per instructions in kit. **Note torque specks are INCH pounds not foot pounds**
torque to 48 inch pounds
torque to 84 inch pounds
torque to 84 inch pounds
Install new intake gaskets: use black RTV on lower corners where they cross
Reinstall intake
torque bolts 1 through 4 to 72 inch pounds 12 inch pounds at a time
torque bolts 5 through 12 to 72 inch pounds 12 inch pounds at a time
torque all bolts to 72 inch pounds
torque all bolts in sequence to 12 foot pounds
torque all bolts in sequence to 12 foot pounds
Once fully torqued begin re-installing all removed components
Add coolant and check oil levels
'EM
Linear Mode
