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Smart Reasoning:

C&E

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Qaagi - Book of Why

Causes

Effects

adjustmentcausingengine to stumble at idle

an incorrect valve adjustment(passive) can be caused byA slight misfire at idle

A bad PCV system ( allowing too much air in at idlecould also causerough running at idle

by most likely a bad spark plug or oil(passive) caused bymisfire at idle

by most likely a bad spark plug or oil(passive) caused bya misfire at idle

the leaking valve issuecausinga misfire at idle

an ignition related problemis causinga misfire at idle

This lean conditioncausesa misfire at idle

some play in itcausesa slight rattle at idle

by over - rich mixture(passive) caused byrough - running at idle

a faulty glow plugcausinga misfire at idle

a coilcausesmisfire at idle

a knock sensorto causea misfire at idle

compressionresultsin the misfire at IDLE

a distributorcausesmisfire at idle

over - rich mixture as the carb is shaken about(passive) caused byrough - running at idle

a defective coilcausesrough running at idle

all the egr ... pluggedcausinga misfire off idle

weak valvespringscan ... causea misfire at idle

Had a trip down after cambelt change at the main dealerscausedrough running at idle

a open EGR valvewill definately causea stumble at idle

the power valveshould ... be causinghesitation at idle

Both of those plugs have been knownto causeslight stumbling at idle

a stuck open EGR valvecan causestalling at idle

Worn and loose springswill causea rattle at idle

the EGRcausedstumble at idle

not always a " bad " injectorcausesa knock at idle

Another thingcould causestalling at idle

a lean idle mixture(passive) is most frequently caused bySurging at idle

Vacuum Leakcausingsurging idle

the throttle bodycould causethe surging at idle

the throttle body gasketcausedsurging idle

a vacuum leak , not an electrical issue(passive) is almost always caused bySurging idle

may leakcausingsurging in the idle

vacuum leaks(passive) is usually caused bySurging idle

i can thinkcould be causingthe knocking at idle

thingsmay causepopping at idle

the issuemight causesurging in idle

this type of flywheelwill causerattling at idle

Many firms domight causesurging in idle

overheatingwhy ... to causeoverheating

my idle speed to go up , as expectedcausedmy idle speed to go up , as expected

a buildup of carbonto causea buildup of carbon

a rough idle conditioncausesa rough idle condition

a rough idling enginecausesa rough idling engine

knockingcausesknocking

the control valve 19settingthe control valve 19

excess fuel consumptioncausesexcess fuel consumption

to global warmingcontributesto global warming

Spark timing(passive) was setSpark timing

then turn it offpromptedthen turn it off

it to stallwould causeit to stall

fuel consumption and emissions(passive) caused byfuel consumption and emissions

in unnecessary fuel consumption and component wearresultin unnecessary fuel consumption and component wear

to wastage of fuelleadto wastage of fuel

the charge lamp to illuminate dimlycan causethe charge lamp to illuminate dimly

to local air pollutioncontributingto local air pollution

to air pollution problems in Londoncontributeto air pollution problems in London

not only pollutioncausenot only pollution

the pollution(passive) caused bythe pollution

to air pollutioncontributeto air pollution

pollution and were a nuisance to pedestrianscausedpollution and were a nuisance to pedestrians

coil stress(passive) caused bycoil stress

needless pollutioncontributeneedless pollution

a nuisancemay causea nuisance

a knockwas causinga knock

engine problemscould ... will causeengine problems

harmcan causeharm

harm tocan causeharm to

to the carbon emissions in the environmentcontributeto the carbon emissions in the environment

Disturbance and nuisance(passive) are caused byDisturbance and nuisance

an epidemic of empty gas tanks(passive) caused byan epidemic of empty gas tanks

a hesitationis causinga hesitation

a cylinder misfire conditionmay causea cylinder misfire condition

mirror signalstationleadsmirror signalstation

an over heating problemhas causedan over heating problem

up the final descent rateto setup the final descent rate

a lean roll in the RPMcausinga lean roll in the RPM

mostlycould resultmostly

the world?s space vehicles(passive) set ... bythe world?s space vehicles

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Smart Reasoning:

C&E

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