• Oil pressure dummy light flickers...
• Stud Kit Help
• Cleaning Heads and Block
• rough idle, no codes, rough start
• Overheating Eldorado Help
• Over Heating... HELP!!!
• Water pump & crossover gasket - $$$$
• manifold blowoff
• Snapping noise when coming to a stop..Answered Finally!!!
• sealant for blown heads?
• Head gasket repair
• 2001 deville rough idle
• engine grounds
• coolant leak
• 2001 cadillac deville small hesitations
• 1994 STS Overheating (I think)...
• Quick Oil Question
• Which spark plugs to buy?
• P041 1994 deville concours
• Block Identification Numbers
• need some help
• 95 Eldorado ETC - Cooling system
• 93 Northstar Dies randomly. HELP!
• Rad Cap PSI was wrong
• broken bolt in oil pan
• 5w30 or 0w30
• power steering line: o-ring?
• Help Me Please
• N* Serial number
• Coolant Leak. Where's it coming from?
• I may need all forum members help, especially those who have ordered the stud kits.
• N* engine removal - newbee
• Normal Operating Temperature?
• Make Your Own Damn Motor Mount
• Is 235 too hot for a N*star on hilly roads?
• Please Help with long cranking time
• No clue what to do. Northstar blues
• What Oil For Northstar Cams and Flat Tappets?
• 2001 caddy sts seville tranny
• TCC Stuck Off
• What is going on with the car?
• Spark Plug Wires
• problem with map sensors
• "Hush" or "Gasp" Before Expected Throttle Response
• Horrible Engine Bucking 93 N* Allante
• my 93 ETC Eldorado N* has a question for you guys
• Spark Plugs ACDELCO or somthign els ?
• Trouble finding exhaust leak 99 Deville Y motor
• NO Codes but stalls...
• Intermittent starting issue 97Seville SLS
• Good mechanics to fix head gasket in Oceanside, California area
• 2001 DeVille DHS / North Star motor losing power
• what to look for buying a used northstar powered car
• Overheating
• Tranny problems?
• 01 Deville issues, no codes, no check engine light
• rough idle, only when in gear and brake on
• Rough idle-stumble on accel
• Why high fuel pressure?
• engine swap
• how to install serpentine belt on 98 concours
• Yearly engine oil changes really necessary?
• 1997 Northstar low speed hesitation and noise
• Air-Dam / Belly Splash Guard importance on cooling your N*
• Hard shifting 1-2 Help!
• Strange coolant/heat issue 99 STS
• cooling fans inop p01660
• White smoke after changing starter (by removing intake manifold)
• N* Powered Camaro
• No current codes but...
• 1998 STS engine full of mystery sludge?!
• '96 Deville Coolant Change
• Oil in intake manifold 4.6 1993
• fuel injector ohms
• 97 Etc N* Head Gasket Project
• Engine year compatibility
• 1997 4.6 eldorado up hill over heats
• 95 Eldorado 4.6L Engine stalls
• 93 sts misfires, stalls, very rough idle, looking for cause
• 98 Deville Concours Preformance Exhaust???
• Engine running at higher then normal RPM`s
• Air ride compressor
• PCM 09354896 code DCHJ
• 93 sts fuel rail removal tools
• 94 eldorado 4.6 - no codes - stumbling/chugging - about to give up
• Overheating problem
• Finally Been Done Cadillac Obd-2 N* Pcm Programmer!!!
• Overheating??
• Motor mount replaced!! WTF!!!!!
• Codes P0122 and P1122...
• Adding an Electric water Pump 95 Northstar
• 1996 Seville STS O2 Sensor REMOVAL. CAN"T GET TO IT
• the day has come: headgasket
• headgaskets a 2nd time?
• 96 Seville where's the 02 Oxygen Sensor Location?? PLEASE HELP WONT PASS EMISSIONS!!!
• Therma Gasket Fixed My Head Leak
• Long road trips good for the Northstar?
• 93-99 Camshaft picture needed
• 97 eldorado w/180,000 miles, should i upgrade to a preformance coil?
• Car not turning over
• maybe you all know more
• Codes 340 and 1016 + Fixed A.I.R. with new coil cartridge?
• Transmission issue
• 2007 XLR 4.6 in a Hot Rod!
• spark plugs
• 93 seville sts fuel rail
• rear main seal
• After WOT Car smells strong of sulfur , rotten eggs
• is it the head gasket again?
• 1995 northstar for sale *LOCKED*
• Random light miss during constant hwy cruising
• Problems with starting the engine
• 1997 deville stalling at idle
• allante 9 engine swap to a y engine
• how reliable is northstars limp mode
• Dexool Questions
• 2002 caddy deville
• Limp. Mode help
• Reg oil or Synthetic oil
• Coolant Shooting Out
• Need Motor Mount R&R procedure in Tech Tips
• Which PCM??
• Stock crank HP?
• Best oil and spark plugs for the northstar 4.6L
• Why do these motors break rods?
• Fuel Injector O-Rings- Where go?
• air in cooling system
• oil cooler
• pretty betty deville
• anyone ever use Engine Ice Hi-Performance Coolant
• Help!! Engine idling with hiccups
• Tach
• GM now offers Premium Remanufactured 4.6L Northstar
• What are the differences between 99> and 00< motors?
• '99 Seville STS
• N* running Hot, Real Hot
• 91 GMC Sierra, with a Northstar?
• 1999 deville almost overheating
• Need Help Installing Air Filter ?
• 3.71 ever better with smaller wheels?
• Minor Coolant Leak
• Hydraulic valve-lash adjustor evaluation?
• 99 deville oil pump
• Refrigerant pressure
• oil in the antifreeze & overheating
• Northstar Died? no vacuum, no compression on cyl 6.
• 2002 Deville coolant leak
• bad headgasket
• Injector spec for a Y2000 N*
• Alternator questions....
• TPS issue: Codes P0122, P1122. Help!
• Started to hear an intermittent grinding noise
• 01 STS Water pump grumbling noise
• 98 sls overheating
• Roots style S/C for the northstar. Anytakers?
• Blew the head gaskets replacing the motor
• My Rough Idle Story, So Far...
• Come for a vacation while your HG's are replaced
• 96 96 Northstar Noise and Oil light issue With Video
• 2001 Northstar AIR Valve
• Want to buy northstar coils...
• Code I039??
• oil cooler
• 99 deville - RFA U1000 Help
• EVAP Purge Solenoid
• 97 deville overheating??
• Low oil pressure enigine stop no start
• Speedomoter Reads wrong
• 2001 Deville Falls Dead
• Intake Manifold Removal Snag
• P0171, P0174 After replaced Plenum
• Does Anyone Have Any Ideas???
• P0621
• 4T80E 3.11 to 3.71 swap
• Smoke
• Batteries, voltage, power, and Optima
• '98 heads and cams on a 2000 block
• Temp Indicator Question!
• Exhaust manifold swap?
• Fuel Rail / Fuel Injector Removal
• 2001 deville misfire
• Another Successful Mod (albeit potentially destructive)
• Main studs?
• 97 Northstar Oil leak
• Notice of price increase on HG replacement
• No Spark
• Puffs of smoke while revving in park
• Northstar Valve seals?
• Warping the Heads???
• Transmission problems after HG fixed!!!
• A/c Discharge Hose
• Weird transmission behavior - any ideas?
• Go with studs and get warranty on a DIY HG job
• Unique engine swap, need help deciding which N*
• What size of Time-Sert I have to buy ?
• timeserts
• Mystery Vacuum Hose
• Bad Thermostats or blown Head Gasket??? Help
• Question about Time Serts?
• Oil filter IArea

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