View Full Version : DOHC Maintenance
- No Spark
- timing belt help hekp
- Question : anyone know what these wires are?
- This Timing belt is messing me up! Please Help!
- Gas in Oil
- Question : Car rolling in every gear?????
- Question : Oil in plug tube well - what's the possible source
- Question : do i need the cam gear holding tool?
- Question : 1991 Z34 ecu
- Question : crank sensor
- Engine surging at 4000 RPMs
- 1991 Lumina Nostart Code 42
- Question : Where to begin
- Engine swap headaches
- A/C Pressure Sensor
- Loss of Crank Signal - Intermittent @ High RPM
- Timing Belt
- Electric Fan problem
- Did Sparkplugs and Oil Leak
- Question : Ticking ;ifter
- 1995 lumina wont start after cool down
- Question : timing belt reinstall
- Question : plug to coil?
- Question : correct ignition timing for 93 Chevy Lumina Z34
- please help with my motor its driving me crazy
- 95 GTP sounds cammed
- z34 goes straight to 3 grand(rpm)
- Question about wasted spark ignition
- 5-speed Manual Lumina Z-34 shifter cable problem
- Question : CMP Connector Plug Gone Missing!
- Question : 2 Questions
- ABS issues
- If you are missing your Owner's Manual...
- Would like to know your timing belt experiences
- Resolved : 94z revs to 3grand update
- Distributor Oil Pump Drive Plug
- power steering?
- Question : Performance Clutches
- Question : Loss of Oil pressure during acceleration
- Question : Symptoms of Engine Out of Timing
- ABS riddle
- harmonic balancer???
- Coolant leak when engine cold
- alternator issues
- Valve cover Gaskets?
- Huge Power Loss! Need Help...
- Stupid Question, stupid answers might make me laff
- engine removal
- Question : knock when cold but almost goes away when warm
- Question : on typical oil leaks
- Question : Oil and Filter preferances
- DOHC crankwalk?
- best timing belt?
- waterpump r & r
- Question : sensor
- Adding coolant
- you replace a harmonic balancer in a corvair?
- What Oil,Tranny fluid and how much?
- Plug Wires
- Help from DOHC guys
- Wanna Get HiGh?!
- mistery wire?
- 93 z34 with problems. PLEASE HELP
- sparkplugs
- 96 intake swap question? Heater core?
- New to the 3.4...what to check?
- backfiring in the throttlebody
- still hunting
- Vacuum routing, anyone with a 91-95 3.4 TDC who ca
- Temp Gauge?
- flushing 284 trans and add new fluid...bad idea?
- Timing Belt Tensioner
- Timing Adjustment
- P0172 Code
- Stalling when shifting into gear
- Coolant Temp sender (1 wire on front head)?
- Maf screen?
- No Start
- list of cars with 3.4l twin dohc
- Question : Lumina z34 3.4 vacuum leaks?
- can i just line up the timing marks?
- Question : New guy needs help w/vacuum lines
- ALDL connector OBD-I OR OBD-II
- troubleshooting drivability problem on '92
- excessive gas usage
- Question : z34 restoration
- 92 grand prix spark plugs
- 94 z-34 won't start - timing chain?
- aftermarket injector upgrades?
- Intake hose picture?
- Kent-Moore tool set
- when do you know when the I.A.C. is bad?
- EGR tube Fix
- Won't idle
- 1999 3.1 Oil and Coolant Mixing
- SeaFoaming 92 Z34
- Factory Manual Question
- Flush Before Intake/Head gasket Replacement
- Question : Tie Rod Ends
- Same damn problem...
- best way to remove coils?
- anti-lock brake light
- Question : 94 z34 center console
- Question : Injector harness wire
- '99 3.1L Teardown Question
- Leaking oil from distributor??
- Question : Oil pump drive quick fix N/A???
- Pulling heads questions...
- Thermostat housing
- Alternator went today
- 93 3.4 dohc grand prix stalling
- 1996 GTP - another stalling thread.
- Front brake disc
- Burning Coolant. LIM?
- Have to change alternator on 95 MonteCarlo Z34
- 96 z34 wiring harness
- spark plug problem
- Need Help!! No tach sig, change Crank sensor?????
- timing belt problem 91 lumina z34
- Just got my first DOHC motor
- Question : 95 DOHC GTP GP cooling system issues.
- Question : o2 sensor?
- egr trouble
- timing belt split
- Possible Bad Sensor
- Need location/pic request for PCM vent
- Question : Is the 95 olds 3.4 DOHC an interference fit motor?
- Sick 91 z34 rough idle, stalling & no power
- Water pump AND a/c compressor replacement
- Timing Chain Replacement
- HG's, T-Belt.... Dreading the day
- This has happened a few time lately
- Question : 93 gp, question, wire plugs next to MAT...
- Question : No SES.. or injector power at Inj...
- Mysterious vaccuum line - 1996 GTP
- Question : Loud Rattle when A/C turned on 1992 3.4 DOHC Z-34
- Question : Overheating at stop
- Ignition key lock cylinder 95 lumina
- Question : '97 LQ 1 Lower Intake installation Questions
- 91 Z34 still Sick, but now have free scan
- Brake Warning Light
- Stock mufflers, has rasp, suggestions to fix??
- 92 Lumina Z-34 5-speed - stalls with clutch in
- 92 lumina euro 3.4 no start
- Changed Crank Pulley - Engine Now Frozen
- Possibly a head gasket?
- 3.4 DOHC with timing belt AND chain. Chain fail?
- new problem
- tps sensor
- plug wire on lq1
- Oil Leak passanger side...
- Question : 95 monte w/ 3.4 DOHC. where does this connector go
- Question : First post question about issues with 3.4 Fiero
- Headgaskets, Which ones? Smoking?
- Testing Fuel Injectors, shorted out injector?
- MotorSilk?
- Hard to start 3.4 when cold, had fuel problems
- High Pressure P/S Hose Fitting Size?
- Searched but still out of ideas
- Starting Issues?
- Alternator on a 5 speed
- ok! Timing Belt Overload!....3.4 DOHC
- Question : 95 3.4L DOHC Monte Carlo Crazy Idle Issue
- 92 lq1 iats ?
- Question : Coolant Hose To LI Manifold Clip
- Question : 3.4l starting issues.
- gathering parts & making plans for my cutlass conv
- Question : timing belt + pulleys - where to buy?
- Question : cam hold down tools
- engine sputters a bit when cold.
- Intake Manifold Gaskets
- crank no start need help
- Question : power steering line replacment
- Question : where to buy god damn timing chains for a 2.8/3.6
- Question : ignition replacment
- no spark issue
- heads up display woes
- no speedometer and no shift
- Question : Monte alternator in lumina z34?
- Locked up DOHC 3.4
- 3.4L DOHC Running Rough
- 3.4 DOHC engage clutch engine dies
- Question : lumina z34 CODE42
- Timing belt walkthrough
- Diagnosing my idle problems
- Question : A.I.R punp plumbing ?
- Question : A.I.R pump plumbing ?
- 3.4 fuel press
- Question : 1991 grand prix headlight fuse location
- 3.4 timing belt issues
- 3.4 Tensioner Pulley - Good or No Good?
- engine wire harness
- Timing Belt on a 96
- Cam hold down tool to borrow in Michigan
- 1995 GTP 3.4 Head Gasket?
- Take a look at this piston I pulled out
- Timing Belt Cover
- im looking to get some help
- wanna make some bets?
- Oiling Scheme Improvement Package (substitute?)
- Upgrading the 91-93 3.4 DOHC to 94-95
- Another 3.4 Missing and running rough
- IAC recal on '92 without Tech1?
- Question : Timing question - with backfire
- Question : Have you ever replaced FuelPump/Sending Unit
- Electrical issues
- Ignition Coil Relocation
- Question : Ignition Coil / ICM Replacment - What Fits?
- Question : Door Handle Locknuts Part #
- Question : lifter caps/cam carrier reassembly
- Question : cam timing/cam gear lock rings
- Code P0008 on 2007 Holden VE Commodore LY7 engine
- Car has spark but no injector pulse
- Intermittent Engine Stumble
- New to the lq1
- LQ1 5sp oil cooler?
- Rough idle & dies when engage clutch??
- 96 LQ1 Not Running
- Exhaust sputter
- Timing belt sticky has dead link....
- found timing belt tools that are still being made
- electrical gremlin
- Turns over, has spark and fuel but won't start....
- P1652 what is this?
- 3.4 DOHC mount rear. Why 3 bolts/studs?
- Code issues which to try first?? 91 GTP using 96 m
- Erratic high idle in gear
- Cutlass quit at stop light
- Looking for 1995 3.4 DOHC ECM conn. pins diagrams
- Air hose plug
- 96 3.4 slipped a timing belt
- Coolant leak 96 LQ1
- W-Body door window, what am I missing?
- '92 GTP was low on power, now won't start
- Home made Timing Belt tools for 95 z34
- can not get cam gear bolts out??!! 95z34 monte
- Question : power steering whine, after timing belt job
- Turns over a while before starts... cold
- LQ1 MAP sensor oily
- Question : timing belt sliding a bit on cam gears
- Where is my Coolant going?
- Cleaning the plenum
- Where to get valve guides
- Losing coolant into #2
- 95' 3.4 DOHC High Idle
- 1991 Cutty - High Idle When Cold
- 1993 3.4 DOHC "Lifters"
- Question : Where to get timing belt actuator
- 91 Lumina Z34 Problems
- LQ1 Service Bulletin 57-61-09 Lifter tick (cold)
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