• WTB: ASAP 4.9L Front Exhaust Manifold
• Engine noise while in park?
• egr questions
• Low Oil Pressure
• 92 Deville 4.9L..how many O2 sensors.
• Looking for a couple of VSS wires - '91 Deville
• EGR Vavle
• Pushrod?
• Please help me with my 4.1..or give me a mechanic who can
• CAM sensor
• pellets and 4.5 engine
• 92deville, idle(rough) Injector service??
• '93 4.9L Spark Plugs and Wires
• Air Pump Seized (4.1 engine)
• Intermittent Stalling
• experiment...MPG...ACTUAL vs. COMPUTER
• How to remove/replace rattling CAT
• ohm reading for injectors on 4.5
• 4.5 engine
• 4.5 EGR vs. 4.9 EGR
• 'Service Engine Soon' Light on my 4.9 DeVille - Any ideas?
• new to the forum, need a little help (90 4.5l pfi)
• 90 Deville Dies while driving
• Best (Worst) Air Filters to Use
• I replaced my tps and isc but it stall every now an then
• Rough Idle
• free power??
• junked 4.1 installed chevy 5.0 runs great
• 85 cadillac seville
• New 4.9 problem, horrific idle, backfiring
• Cars starting to run a little better!
• Starter Disabled "Anti-Theft"
• TCC location, please Help!!
• Weird A/C air condition problem
• HT4100 coolant issue.
• 92 (4.9L) stalling
• 83 eldorado with new reman engine and tranny timing / ping probs
• 92 Deville - OIL IN COOLANT
• car wont start (84 4100)
• can't advance computer beyond PCM?
• 4T60E Trans Sport Mode???
• 4.9L Stalling out
• discontinued?
• Transmission Wont Shift
• low oil pressure light
• Bad Engines?
• 4.1 to 4.7
• Edelbrock engine....
• A/c
• Speedometer problems......
• gas smell?
• 1985 Seville HELP NEEDED
• Size of O-rings in fuel line
• Fuel Filter Location.
• Dexcool in a 4.9L???
• O2 sensor
• 1992 4.9 goes to open loop at HWY speeds.
• Overhauling and Modifying a 1982 HT4100
• Cooling Fan Fault?
• fuel pump location (84 4100)
• 92 deville please help
• What to do to make car stop running rich?
• 92 deville bad head gasket selling?
• Flowmaster 80 Series-I LOVE IT!
• Oil Cooler...
• 4.9L distributor questions
• Best Oil For HT 4100
• 4.9L northstar
• 350 SBC swap pics for DeVillish....
• Got myself an 82 Coupe Deville, having some probs..
• Car giving me fits
• 4.5 cranks but no start
• 89 Seville idles at 2200
• help with codes
• Pistons for a 4.5L and 4.9L the same???
• TPS Enhancer
• Vehicle Data List, Can you spot the problem?
• Better MPG with 87 Octane
• 4.9 distributor help
• umm...help please!
• Fram Air Hog-Test
• 1990 deville starter replacement
• 84 coupe deville codes
• engine swap
• TPS Adjustment for 85 4.1 (RWD)
• high throttle on start. Code 26
• changing belt
• engine coolant supplement
• What are the troubleshooting steps for injectors/plugs/wires?
• swap engine
• wtf
• 92 Deville Surging during idle!
• 4.9 Engine Oil Cooler Line replacement
• ok so maybe its the alternator
• '85 Deville Engine Temp Fan Light
• 4.9 Performance Help
• Ahh!!!
• If I disconnect the battery.....
• Spark Knock, Continued....
• How to go into different parts of OBD?
• symptoms of a bad cat?
• rough idle and sputtering
• reman Ht 4100 is in looking for reman tranny advice, sources, install, fluid etc.
• Over Heating
• ebay purchase question?
• radiator removal and installation
• Engine Dies...
• 92 deville "set timing mode"????
• where is the thing???!!!!!!????
• Radiator leak
• '86 Fleetwood 75 FWD
• 92 deville clicking after shut off???
• Throttle Body and Air CLeaner Housing
• bogging 4.9 in a Fiero
• Quick PCV question
• bad thermostats, hopefully?
• Overheating Badly
• '89 DeVille, ISP motor bounces
• problem with "service engine soon"
• Hi - 89 Deville 4.5 Liter V8 in 84 Pontiac Fiero
• Overheat Problem
• How to tell if water pump is going out?
• 4.9 better than Northstar?
• Advance timing on 4.9
• MAT Sensor location...
• 94 deville fuel delivery prob. HELP!
• sputtering
• Serpentine belt for 4.9 ('91 Deville)?
• Installing Reman Ht 4.1 Oil And Coolant Suggestions
• 15 Amp ERLS blowing
• loud tapping noise in the left bank sounds like from top end
• so many codes!
• ISC motor idle speed
• eric
• replacing a broke pulley
• High RPM on Motor Start - 4.9
• Jrb
• 87 Eldorado 4.1L
• 87 eldorado 4.1L in an 84 fiero - SES light ON
• 0.07 volts for ground???
• I bought my muffler
• 4.1 TPS sensor
• got my 4.1 reman in but it wont fire up
• simple 4.9 questions
• how do i remove the throttle body?
• Dead 89 deville engine
• 4.9L Firing order + Cylinder location HERE!
• 4.9 And The Gas Mileage Sucks!!!
• 4.5 V8 Water in Oil
• Hammer -vs- Fussy Starter
• 4.1 exhaust manifold
• Best motor oil for 4.9?
• 4.5 Coolant Problems, Leaking Fluid - but from where?
• 4.9 Head Gasket
• Newbie looking for HT4100 info
• 4.9L performance upgrades?
• car from hell
• 4.1 Rough Idle
• 92' dies then restarts by its self
• HT4100 Stalling
• How much for New Head Gaskets?
• 4.1 to 4.5 swap
• new mat and coolent sensors
• What's wrong with my 4100?
• 4.9 ltr
• 95 deville tranny question
• EGR Malfunction -- Please Help
• E048 EGR fault code how to fix?
• What MPG for 87 Eldorado, 4.1?
• 4.9 reliability :P
• Any way to disable the ses light?
• old radiator cap problematic?
• Going to be a long weekend
• ECM pinouts
• Help With Code
• confused
• code ro15
• 4.9 Ltr Timing Belt?
• Drive ADL switch?
• spark plug question
• 4.5 no start, no life. sorta familiar
• 4.1 Operating Temperatures
• Throttle body bolt stripped out of intake manifold
• Need help ... engine kicks, accelerates/revs itself
• 92 Fleetwood 4.9 hesitation/code help
• Tackling Motor mount Replacement-92 Seville(4.9)
• ht 4100 change over to 350 chevy
• Yea another code ??
• coolant leak
• A few questions regarding the 4.9
• steering wheel will lock up and car cut off
• code questions please...
• how good are the bottom ends on the 4.9?
• '89 DeVille a/c not working
• Help with 89 Sedan deVille codes...
• 1988 Coupe Deville 4.5 ECM problem
• coolant in oil in my new motor
• timing a 4.5
• procharger supercharger?
• 4.9 oil consumption

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