• I need a no Yo-Yo shift-kit immediately!! '84 RWD DeVille
• Does anyone have a picture or info on the Negative block ground?
• 1990 Allante Bosch fuel injectors/FiveOMotorsports
• Groll Polluter FIXED??????????????????
• 4.5 Fast Idle problem
• EGR Cleaning
• No Spark/ No Start Problem/ Pulling what hair I have left out!
• Cheap quality Rebuilt transmissions
• Spark Plug Replacement
• 1994 4.9L won't pass emissions HCs too high How to fix?
• 92 Deville will not run with MAP sensor connected
• Fuel Injector Compatiblity
• 93 Runs rough & loud when wet
• I need a water pump have a couple of questions.
• Newbie here with a warning about Autozones (Wells) TPS
• 4.9 Froze
• A few qestions regarding timing, etc.
• 4.9 Dead - How easy to swap in a 4.5?
• injectors
• 1990 Allante fuel injectors
• 4.9 with 60K knocking, please help!!!!!!!!!!!
• 4.9 Air Cleaner
• Oil Theories
• New Electric "Turbo" not supercharger!
• Collapsed UPPER Rad Hose!
• oil change
• Help ECM E85
• 4.9L and HEI help!
• Alldata (autozone)????????????????????
• A/C Compressor
• 93 seville sls idle problems
• 4.9 Serpentine Belt
• '85 Throttle Body in an 82 Eldo???
• 85 Fleetwood Brougham W/ 4100 -- No Start...
• Fuel Pumps on '82-85 HT4100 -- Life span??
• new to the forum - big problem
• Difference between '82 vs '85 Fuel Injectors on the HT4100????
• Analyzing Fuel Economy
• Got Injectors? 4.9/4.5
• Hole In Muffler(Recommended Replacement)
• Why Wont This Car Start After I Put In A New Alternator.
• 91 DeVille
• GM parts vs Aftermarket- HT4100
• Code question.
• 94 deville loss of power
• Knocking/Rattling From Engine
• In reguard to my deville's rough idleing,could it just need an induction service?
• 4100 Reliability
• Plugs for 4.9
• Inaccurate gas readout?
• 1994 Deville 4.9 (Serpentine Belt) - Save Me From the Junk Yard
• 4.9 with sleeves?
• Stoneage_caddy my deville is stuttering when idleing,any ideas?
• HELLO - I'm seeing an error code 52 - any idea what that means?
• 84 4.1 Eldo
• 92 4.9 fleetwood high idle
• 1990 feleetwood codes on air control panel
• Open or closed deck block
• Roaring Rattling Deville
• 82 deville VIBE SOLVED
• Low Oil Pressure Light 1982 eldorado
• let the thing blow up??
• 4.1 v6, 4.1 v8-- What's the differance?
• engins problem
• radiator blew apart
• 4.1 Giving 3 codes...Need help
• Is the 4.9 Under Rated?
• RE: 82 deville
• 4.1 ELDO Hesitation and Stall
• Fuel Injectors
• Regular gas vs. premium gas
• used injectors
• 82 deville vibration
• Emission Results fine in set timing mode?
• '84 Eldo Failed NOx
• Wow...26+ MPG in a 3900# vehicle with over 700 lbs of cargo/passengers
• injector part number
• What are common issues with the 4.9?
• Dip Stick Tube
• Overheating not block or head 83 Brougham anyone know whats wrong?
• A new problem...
• What kind of spark plugs for the HT4100?
• changing spark plugs
• need some help
• 85 Fleetwood 4.1 (FWD) NO START
• 85 FWB W/ 4100 Hesitation...
• Subtle rattling noise possibly from transmission
• When do u change the O2 sensors?
• 86 Cadillac Deville Timing
• 85 eldo
• 85 FWB stalled out and won't start
• Can't seem to fond the answer.
• Source for sleeves 4.1 4.5 etc
• where does the "gas mileage" sensor collect the data?
• torx
• Why would the NOx increase after my EGR is hooked up?
• 1990 Allante Engine
• ISC motor ratchets after shutoff
• BBOB or ANYONE---A LITTLE HELP!!
• Could a catalytic convertor go bad in 2 years?
• Does the 4.9 really need 91 octane????
• 90 Deville hesitation after driving for hours
• Fuel Pump circuit problem 84 Brougham
• 93 Deville Werid Noise
• Anyone tested 4.9's fwhp?
• 4.1 Clutch Fan hooped?
• Fuel Injectors help!!!
• 91 DeVille--Problems to Watch For
• Need help with fuel system
• fuel injection parts
• Got a VSS code on my 1990 Deville!!
• SERVICE SOON light comes on random, but serviced at dealer last year.
• 91 caddy deville runs wrong
• miss on the 4.5litre?
• 4.9 liter oil use?
• Failed Smog Test Please Help!!!
• DeVille (DEVIL?) 91 *extreme* power loss.
• 90 Deville runs like crap
• My 1986 Cadi engine revs continually
• help! i think i blew it. 4.5 hg
• Transmission service
• 1990 Deville idle issue
• 4.1 Serpentine Belt Frozen
• high RPM, ISC not the problem?
• 89 deville runs rough intermittantly??
• 'hidden Warranties'
• Please Help Me!!!
• what perfomance mods,if any???
• Injector Failure At 43,000 Miles???
• new problem arising?
• 4.1 Engine seems to be running rich
• Is There Such A Thing As A Starter Motor Overheating?
• Are the GM replacemnt 4100's a better design ?
• HT 4100 flooding out badly. Warm or cold
• '90 Seville with 4.5 Knocks when warm
• Why does '90 4.5L not drop to idle till almost stopped?
• Engine STILL missing (intermittant), tons of work done so far--HELP!!!
• spark plug torque for 1991 4.9
• 4.9 straightpipes
• MAP reading while applying brake
• 4.9 Manifolds????
• 1988 4.5l fwd eats up distributor gears
• fuel system problem...i think
• Dead mouse in the heater/ AC box HELP !!!
• 89 sedan deville hesitation problem--HELP!
• VSS location?
• 4.1 engine questions
• 88 eldo codes but why
• 4.9 head gaskets fel-pro vs GM
• Should I buy it, guys?
• 1990 cadillac sedan deville
• What kind of mpg should I be getting in my 92 4.9?
• Fuel Guage problem
• Hey, can anyone help me with this 4.9?
• 4100 1990 deville
• 1st post: Eldorado dies 3 miles after I bought it...HELP!
• 4.5L replacement for 4.1 in 84 eldo/seville?
• NEED HELP -Stalled 92 Seville STS, won't start
• carb removal help urgent
• no rad fans 90 deville 4.5
• Need help quick please 4.9 deville
• 1991 SedanDeVille - "Service Engine Soon" Light
• is my engine shot????
• Oil pressure in HT4100?
• tranny jumping in and out of gears
• heres where im leaking coolant *pics
• 4.9 pushrod length/width?
• removing oil pan from 92 DeVille
• Low RPM ENgine Rough
• Exaust question
• Rebuild 4.9L thread?
• Steel Rocker Arm Supports
• Does it ever Stop!!!Tuned up and Tuned out
• 1987 Cadillac Sedan Deville
• 91 Eldorado Performance Tips
• TPS wiring Question.
• A/C Leak
• Adjusting the TPS - Right or Wrong?
• Is 104C too hot for a 4.9L 1994 Deville?
• Flowmaster Muffler Installation Pics
• intermittent miss 4.5 1990 deville
• Red Line Water Wetter ?
• GM Coolant Pellets Do Not Work....
• Coolant Fan manual override switch
• Whats up guys! I really need your help!!
• 4.9 Custom Header - Gauging Interest
• help with code please
• Went through my codes today and...(help)
• Blown Head Gaskets 4.5 or 4.9 V8
• 4.5 Cooling System Additive
• Car overheat real bad when sitting still for 15 minute
• 20w50 5W30 oil,not for use in a 4.9 liter engine?
• Do you have to change all 8 injectors on a 1992 4.9?
• Amsoil for 4.9
• How to detect a misfiring cylinder....
• start,start,no start
• What grade of fuel should I use?
• need more hp!!!!!!
• Finally have my Eldorado back w/extra hp!!
• engine code e47

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