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Qaagi - Book of Why

Causes

Effects

reducer pressuresettingless manifold vacuum of gas

small air leak(vacuum leakCould ... also causelow vacuum pressure

a vacuum leakcausinglow engine vacuum

as tight valves will eventually burncausinga rough idle and low manifold vacuum

An EGR valve that is stuck openwill causelow engine vacuum

this typewould causelow engine vacuum

because the valves were loosecausinglow engine vacuum

a large camshaftcauseslow engine vacuum

This conditioncan causelow engine vacuum

leakscan causelow engine vacuum

internal mechanical problems of this typewould causelow engine vacuum

by the rv cam I am running(passive) caused bylow engine vacuum

by the rv(passive) caused bylow engine vacuum

Clogged exhaustcausesmanifold vacuum issues

the atmospheric pressure filling the intake manifold in the absence of the throttle restriction(passive) caused bythe loss of manifold vacuum

that utilizes a large enough duration camshaftto causelow engine vacuum

by a big cam(passive) caused bylow idle manifold vacuum

one out therewas designedto use manifold vacuum

the throttle morewill resultin a lower intake manifold vacuum

enough airwill causehigh manifold vacuum

closed positioncausinghigh manifold vacuum

the closed or near closed positioncausinghigh manifold vacuum

a problem in the valve train(passive) can often be caused byPoor manifold vacuum

worn intake valvescausinglow manifold vacuum

excessive preloadwill causehigh manifold vacuum

a problemcauseslow manifold vacuum

often(passive) can ... be causedPoor manifold vacuum

This situationresultsin low manifold vacuum

only a few thingswill causelow manifold vacuum

valves not to fully seatcould causelow manifold vacuum

a big camcauseslow idle vacuum

by the cam(passive) caused bylow manifold vacuum

which cylinderscontributelittle to manifold vacuum

by cams(passive) caused bylow manifold vacuum

for regulating and monitoring the vacuum(passive) is designedVacuum Control Manifold

by mechanical problems(passive) caused bypoor manifold vacuum

my vacuum advancesetup to full manifold vacuum

Excessive hydraulic lifter preloadswill causelow manifold vacuum

by a long duration camshaft(passive) caused bylow manifold vacuum

by the vacuum pump oil(passive) caused bylow vacuum

the throttle valve to modulate high transmission control pressurecausesthe throttle valve to modulate high transmission control pressure

erratic operation of the blower bypass valve , poor throttle response , etccauseserratic operation of the blower bypass valve , poor throttle response , etc

a further reduction in engine rpmto causea further reduction in engine rpm

the throttle valvecausesthe throttle valve

to work with both MLS designsdesignedto work with both MLS designs

from any number of engine mechanical failures including burned valves , improper valve timing , blown head gaskets , etcresultingfrom any number of engine mechanical failures including burned valves , improper valve timing , blown head gaskets , etc

transmission shift troublescausestransmission shift troubles

in the door in the air flow meterresultingin the door in the air flow meter

the problemcausingthe problem

black smoketo causeblack smoke

excess fuelcausesexcess fuel

in Stainless Steelsetin Stainless Steel

the problem(passive) Could ... be caused bythe problem

Differences(passive) can also be caused byDifferences

the trip of the reset MFPcausedthe trip of the reset MFP

the carb 's acceleration pump / valve to prematurely open and dump gas into the engine at idlewill causethe carb 's acceleration pump / valve to prematurely open and dump gas into the engine at idle

high idle conditionscan causehigh idle conditions

to fuel starvation , high fuel temperature , erratic fuel timingcan leadto fuel starvation , high fuel temperature , erratic fuel timing

the power valve to fully opencausesthe power valve to fully open

by the waycan leadby the way

high idlecan causehigh idle

power valvecausingpower valve

vacuum assist power brakes to be inadequateto causevacuum assist power brakes to be inadequate

low engine power since vacuum is what causes the turbo to make boostcan ... causelow engine power since vacuum is what causes the turbo to make boost

a lean condition at idlewill probably causea lean condition at idle

in low rotor speedresultsin low rotor speed

poor runningcausespoor running

tissue and blood to be pulled from injured areacausestissue and blood to be pulled from injured area

this misswas causingthis miss

additional fuel deliverywill causeadditional fuel delivery

in very low spark advancewill resultin very low spark advance

a motor to " bog down " or try to die at low idlecan also causea motor to " bog down " or try to die at low idle

Regulators(passive) initially for students must be causedRegulators

low engine powercan ... causelow engine power

Hard shifts(passive) can be caused byHard shifts

to poor engine performancecan leadto poor engine performance

sap to move very slow or not at all at timeswill causesap to move very slow or not at all at times

damage to the brake systemwill causedamage to the brake system

from stuffwould be causedfrom stuff

high voltage on map sensor which will trigger it to run richwill causehigh voltage on map sensor which will trigger it to run rich

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Smart Reasoning:

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