• The "4.9 liter turbocharger, stage 1" thread.
• Safety Safety Safety !
• OBD I codes for 4.x Engines
• high fuel consumption..?
• 4.9 issue...
• Could bad motor mounts cause stumbling on light acceleration
• Drive belt routing for 4.9L ???
• 1993 Cadillac DeVille 4.9L Distributor Shot
• Code 26 & 41 '91 4.9
• 92 STS Electrical Short or Drain
• Judgement Call - No Heat 93 Deville
• A/C Compressor Belt Bypass - 89 Deville 4.5
• where to buy mounting bracket for PS pump?
• 1993 Sedan Deville Transmission Swap
• rpm question
• Fuel pump and FPR recommendations?
• Question re: engine swap for 85 FW coupe RWD
• Stripped Head Bolt Threads
• Motor is very clean in my 4.9
• 84 deville 4.1 starting prob's help please
• 84 eldo. antena
• Misfire at idle and sumble under acceleration 93 4.9
• 4.5L engine runs rough
• Cold Air Intake/Exhaust
• I finally switched from dexicool
• Symptoms of faulty distributor pick up coil
• Preventive maintenance ('90 with 28k miles)
• 4.9. Overheating (long post)
• Refilling colant reservoir every 2 weeks, misfire at idle
• 4.9 Pictures and sound clip!
• when should timing chain be replaced on 93 deville 4.9
• 90 Seville Dies Suddenly....
• Motor Mount Replacement
• No heat at 90 degrees on climate control 93 caddy
• Best oil Mobil 1 High mileage for 93 deville 4.9 with 102,000 miles
• Helicoil vs Timesert on non N* (4.1, 4.5, 4.9)
• Confused about seal tabs
• 4.9 What's the best antifreeze to use?
• 4.1 V8 PUlleys!
• 93 deville sits very low in rear time for shocks and coil spring?
• 88 ELDO new r134 Failed Twice??
• PLEASE HELP 93 DEVILLE 4.9 Stumble under light acceleration
• 90 deville front cover gasket failure
• 4.1 Issues with 85 Eldorado -- Can you help?
• Adding NITROUS to a 4.5
• oil pump again
• E98?
• 93 deville surging
• 84 eldo-4100HT
• How reliable will my 4.9 be?
• HT4100 Care and Upkeep
• 4.9 Coolant overfill reservoir not draining into radiator when cold
• tranny sounds
• New Owner with '86 Fleetwood Seventy Five Limo
• Blower fan ideas wanted
• 1994 Deville Running Rough
• 84 eldo-4100HT
• 4.5 Reliability
• Mufflers???
• Plastic Radiator Side Tanks
• ht 4100 to sbc 350 motor mount pad location HELP!
• 91 Sedan Deville 4.9L CAR WON'T START
• 1992 Seville 4.9 Liter Removal
• 4.9 How long will it last?
• 93 deville oil lev
• Brakes
• How do you convert 80's model to R134
• Distributor Gear Sheared Again...Help!
• distributor wrench
• 1985 Eldo Gas Leaking out of the Charcoal Can
• Sawping Out a 4.9
• '91 Deville 4.9L surging
• car stutters intermittently under med/heavy acceleration
• 84 eldo trouble
• 1985 Eldorado 4100 engine swap
• Da Capts Back with his 4.9 Fiero lots of updates
• Your best 4.X MPG?
• PO48 Current/ EGR Fault
• 84 Eldorado Transmission Problems
• Have you used sea foam?
• Coolant.
• Hi. I need lots of help concerning the 4.9L. Thanks.
• here we go again, A/C
• help
• 4100 vacuum diagram
• Severe Coolant Leak 4.9
• fuel meter cover gasket...
• Makes no sense...
• peformance chips
• Missing Antifreeze
• 4.9 Bosch GenIII Injector - ??Integrator, Block Learn, x-count, p.w. values??????
• won't idle
• 4.9 aeromotive afpr won't fit!! Help Mr. Illumna
• New code?
• e.g.r. valve
• 94 Deville Help!!
• voltage regulator...?
• Caddy V-8 history
• sudden engine probs
• Emission test failed
• 4.5 running rough at start -- tune up????
• 4.1 belt tensioner
• 4.9 throttle body description
• 1995 Deville Hi Performance Ideas anybody????
• ht4100 giving me problems
• 4100 engine change. Need input.
• 91 Coupe replaced injectors now blowing smoke
• map sensor
• break line
• error code 20
• Need help on a '90 Cadillac Fleetwood FWD
• 2005 4.1 PCV Valve
• engine popping
• Climate control Problem???
• 1985 Deville Coolant Leak
• 1985 DeVille Collant Temp Fan Light
• just wondering
• new to me 92 sdv,need some help
• HT 4.X base timing question
• brand new problem
• 87 Eldo Cash for Clunker: Heresy?
• '91 Fleetwood Coupe has demons under the hood
• fuel injectors interchange?
• 94 4.9 Distributor question
• How to check cat. converter?
• Name this tube! 90 DeVille
• Cruise control gone 4.1 87'seville
• 95 4.9 deville no spark???
• 4.9L Main Bearing Thump
• 1985 Eldorado Engine Stumble & Surge
• 84 coupeD 4.1
• 1984 Cadillac Eldorado (my topless baby)
• 94 Deville 4.9 where is the governor
• 4.9 litre engine firing order
• 92 Eldo problem
• 91 deville service engine soon
• egnine oil cooler hose assemblies
• 94 Sedan Deville A/C Question
• Advanced Timing
• you helped me last time (weird fuel pump)
• 1991 4.9
• Error code 34 on 83 deville
• What's the difference between ignition modules?
• 4.1L tune up and oil on manifold.
• 92 4.9 starter replacement
• DIN radio in '92 Eldorado
• Head gasket change
• water pump wrestling
• 90 SDV Repeated E22 TPS Code
• silly question
• FWD Engine Removal
• 90 SDV Repeated E22 TPS Code
• How many miles?
• HT4100:major oil leak
• Turbo 4.1 Allante
• 1986 Eldorado HT4100
• 93 Seville 4.9 4t60E
• Idling Down rough?
• Is gas safe
• couple of questions regarding oil pump
• gearbox oil..?
• Extra HP & Torque
• Replacing a blower motor - what's the secret?
• '94 4.9 rough running
• Using a laptop for real-time OBD
• 1986 Eldorado HT4100: No Start-No Codes
• 94 4.9L will not start. Need help
• 91 fleewood won't start code31
• 86 Eldorado Fuel Pump
• Did I blow head gasket on 93 deville?? Please Help!
• Vaccum Line Problem?
• Hard starts when hot?
• Vacuum Line Routing Egr Solenoid & Regulator
• oil pump driveshaft is loose???
• oil pressure gauge installation
• HT4100 Cooling water doesn't circulate (87' Seville)
• removing oil pan on RWD 4.1
• Squeeling betty
• High Side AC Hose Information Needed
• What a mess!!!
• radiator caps with zinc anode
• 92 deville no acceleration when hot
• air pump to fan to crunk v belt
• Where is the PCV valve on the 4.9L?
• Performance?
• My engine build up
• How long will a 4.5 DeVille last?
• Bad CTS?? (coolant senor)
• Real problem
• 4.5 Fuel Injector Issues
• What engine/trans appear in various Cadillacs?
• ht4100 issues
• 1993 4.9 rough at low RPM
• Hot exhaust
• DeVille 4.9 Throttle body spacer
• Fooling the Inlet Air Temp (IAT) sensor?
• Coolant Change Question
• Stripped4.9 headbolt
• Stump the experts!
• Help identify 4.9 engine noise (video included)

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