• 1992 sedan deville head gaskets?
• No More Poop On Coupe ! Yea !
• How do you Remove&Clean Throttle Body, engines too big to see back there.
• Slow Battery Drain
• CAN you change oil filter withOUT draining oil pan?
• 4.5 intake gasket
• 92 Deville Starter heat shied
• 91' deville
• torque convertors for teh 4t60
• Is the exhaust layout identical per the 1983 and 1984 DeVille 4.1 V8
• time for a tune up.. whats involved.
• 88 eldo 4.5 running temp and code E027 ?'s
• Aftermarket Cat
• Best way to clean my throttle body?
• 4.5 liter misfiring on acceleration, rough idle
• 90 deville water pump?
• Newbie needs help with 87 seville 4.1L
• HT4100 EGR schematics needed to figure out smog issue, BAD F'ING NEWS
• Engine Idle and "almost" stalling problems
• Dangers of flsuhing HT4100 with motor Flush and Supertech oil.
• Change of Plans! I'm not supercharging anything...
• 84 Eldorado 4.1 V8 (HT4100) "E" engine, M57 tranny, Noise from lower end
• BARO on 4.9?
• ISC Motor &TPS/E30 code
• Oil leak
• 84 SDV RWD 4.1 Intake gasket
• injector duty cycle
• 4.1 wiring from distributor to plugs HELP ASAP
• 4.9 oil pump in 4.5?
• Fuel pressure
• 1990 4.5l air system problem
• Can A 4.1 Trans be Used in a Long?...
• does ECU prevent engine braking
• HELP!! 91 Eldo stalling problem
• coolant temperature
• Bad ECU?(BBOB)
• remove power steering pulley
• Starts hard when it gets hot
• How much booooooooost PSI can these 4.1's take? What gives in under pressure?
• GM Reliability Testing?
• Fuel Injector Replacement
• And Yet Another ISC Motor Question
• More 4.9 Stall Problems!
• Starter Removal
• used E C M ... from junk yard
• 1990 Deville won't start HELP
• Took a Vid in my 91 Deville
• WHAT THE **** IS EVERYONE's FAVORITE MUFFLER/CAT Pipe SETUP?
• Best way to flush system (84 HT4100 SDV)
• Engine Oil Questions - Bboby
• What The Hell Is That Thing!?!?!?!
• Cleaning and tune up junk on an 88 4.5L deville
• 85 Eldorado 4.1 help!!
• What kind of Exhaust systems do the 84 SDV 4.1Liter motors like to breath through?
• Knocking in the 4.9
• Oxygen Sensor Broke?
• Whats The AVG MPG Readout for this forum
• Car has no spark
• 94 deville questions
• Info on GM Goodwrench replacement engine, HT4100
• Which models come with the 4.9 V8?
• idle rpm
• 4100 D F I injector problems... looking for solutions
• HT 4100 Replacement Source?
• plug wires??
• catalytic converter
• What water??
• 4.9 codes
• problem while coasting
• throwing my belt off
• Rough Idle, 87 4.1 Eldorado
• Finally. . .Solved Intake Backfire
• 90 Deville code help
• Rough running 92 Eldo
• Ht4100 Backfires Out Of Fuel Injection
• 93 Sedan 4.9 F32, archives no help
• 93 Deville Experts Please e26 239 e47 e97 e98 f32 stalls
• Engine Idles 10 Seconds AFTER Ignition Shut-Off!!
• what kinda maintenance should i do
• Bbob...Whats the difference!?!
• Grounds Anyone?
• Weird 4.9 noise (not in archives)
• '85 Deville running rich
• Check Fuel Pump Amps draw ? Bob ?
• Oil Overfill Cause Engine Damage?
• Getting a Attitude Again-missing
• Oil Filter Capacity?
• Rpm/idle Problems
• looking for opinions on best oil/synthetic to use in a 4.1
• Where on the Web can I Find AC Delco Spark Plugs Cheap
• Oil drain plug stuck on 4.5!
• What is most likely source of oil leak?
• type of oil
• Fastest 4.9 Ever?
• I Don't Even Know Where To Start
• Rotella coolant.
• good compression
• 4.5L Idle Problem Solved!! Thanks, bbob
• Change spark PLugs
• Air Management System Problem
• Porting on HT4100's
• Changed Oil Pan Gasket, Still Leaking (4.1)
• Cam sensor replacement?
• Timing Questions...
• i want to make sure
• Looking for used v-8 intake
• Fuel Economy and Engine Power
• 1990 bcm code e-47
• 85 seville transmission
• Noise Under Hood When Turning Ignition On and Off
• Coolant Pellets? How Many?
• Engine Knock
• help my overheat um i think
• Anyone Need a HT 4100
• engine oil supplement ?
• please help
• Is this the same knock as the 4.9 knock? It is an HT4100
• 4-9 Fuel Pump Psi
• 4.9 valve cover
• surging power
• Install Separate Thermostatic Fan Control?
• Lucas oil treatment?
• 4.9 60k knock gone!!!!!!!!!!!!!!!!!
• questions on 4.9l v8
• Bbob- Open Loop Better Than Closed??
• 4.1 Eldorado Oil Pan Gasket Change; MAJOR PAIN!
• Where's the ALDL on my 88 Deville?
• 95 deville blown head gasket
• 4.9L compatable with small block???
• HT4100 "Base Timing Mode"
• '92 4.9 Stalling after transmission rebuild
• 92 seville performance help
• Cleaned egr tubes
• 86 Seville 4.1 advice re removal of water pump
• Transmission
• Question About Changing Water Pump
• 95 Deville 4.9, Low oil pressure warning
• Mixing oils...
• here is a good one
• Tranny Woes
• To ILLUMINA!!! RE Performance Parts for 4.9
• Purchased 1984 Sedan Deville
• 93 weirdo miss
• stock 4.9 intake to allante intake comparison
• Rebuilding an HT4100
• HT4100 0-60 times!
• Needle in a haystack E53
• Redline/Tachometer
• '90 Deville 4.5 idle problems
• What kind of problems do you get if you have a F32 code
• What is a BCM?
• What Is A PCM?
• A few 4.x questions
• 200R4 slipping real bad
• 4.x dyno and comparison questions
• 88 Deville...E30 & EE30 code
• 4 prong spark plugs on 4.5
• Idle Speed Control Unit
• Does Anyone have F codes for a 93 deville
• thermostat
• 4.5--->4.9? (maybe more)
• Computer/wiring on 4.1L to 4.5L swap
• Engine Misses when cold
• Left or Right Bank Fuel Imbalance
• 1988 Deville Fast idle problems 4.5L
• Help!!!My caddy flunked the emmissions test
• advanced timing
• 92 Help!!!
• Cheap HP´s?
• 93 DeVille failed IL CO and HC emissions - need help
• Code E30 ( NO DASH!!! )
• Boosting HT4100 Performance
• Ht4100 Flowmaster Sound Clip!!!!!!!
• Blown Head Gasket maybe?????
• code19
• now what ?
• Bad computer? Maybe
• intake question
• how do i use the codes
• OK the 4.9 ECU mods thread ,lets go!
• Need information on an engine rebuild
• 4.9 engine idle speed...
• Another one knockin
• E98 Isc?
• Dumb Tool Question?
• EDAHALL! How do i post sound clips of my FLOWMASTER 40 SERIES delta with the HT4100
• Startup problem
• Piston Rings
• Intake on a Deville...
• Delco vs. Others
• 4.9 knocks under load
• Will a HT4100 go into an 88 Deville?
• Engine Swap
• 90 Deville-surging, missing, after it is warmed up
• Accel Fuel Injectors
• A little oil here and a Little oil there
• How do you advance timing?
• Performance Mufflers for 4.9??
• Ticking
• Got a Reply! on HT4100 TO 4500 Conversion!

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