Skills and Trades

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Technician A says that CO and HC levels should increase if the AIR hoses are pinched off. Technician ... Started by mcmcdaniel	1 Replies 76 Views	Aug 13, 2021 by dominiqueenicolee
Technician A says that a 3 5 card should be held against the oil fill opening if the PCV system is ... Started by robinn137	1 Replies 33 Views	Aug 13, 2021 by Ahnyah
How much of the air needed by the engine flows through the PCV system when the engine is at idle speed? Started by mmm	1 Replies 87 Views	Aug 13, 2021 by soda0602
A P0410 DTC indicates a problem with ________. Started by mwit1967	1 Replies 45 Views	Aug 13, 2021 by aham8f
Blocking off the EGR valve passages will have no effect on the OBD-II system. Started by maegan_martin	1 Replies 57 Views	Aug 13, 2021 by bookworm410
Which of the following are symptoms of a clogged EGR passage? Started by Zoey63294	1 Replies 87 Views	Aug 13, 2021 by Cheesycrackers
When testing an EGR system for proper operation using a vacuum gauge, how much should intake ... Started by theo	1 Replies 61 Views	Aug 13, 2021 by ASDFGJLO
Two technicians are discussing clogged EGR passages. Technician A says that clogged EGR passages can ... Started by BRWH	1 Replies 78 Views	Aug 13, 2021 by Sarahjh
The following statements are all correct EXCEPT ________. Started by burton19126	1 Replies 620 Views	Aug 13, 2021 by randomguy133
Technician A says that a low-restriction exhaust system could prevent a back pressure-type ... Started by plus1	1 Replies 57 Views	Aug 13, 2021 by covalentbond
OBD-II regulations require that the EGR system be tested. Technician A says that the PCM can monitor ... Started by HudsonKB16	1 Replies 49 Views	Aug 13, 2021 by jharrington11
In which of the following conditions is EGR not commanded? Started by K@	1 Replies 51 Views	Aug 13, 2021 by tkempin
EGR is used to control which exhaust emission? Started by formula1	1 Replies 41 Views	Aug 13, 2021 by wuly
An EGR valve that is partially stuck open wouldmost likelycause what condition? Started by LCritchfi	1 Replies 87 Views	Aug 13, 2021 by HandsomeMarc
A vehicle comes into the shop and the technician retrieves the diagnostic code P0401 "EGR flow ... Started by CharlieWard	1 Replies 110 Views	Aug 13, 2021 by Jordin Calloway
A P0401 DTC (exhaust gas recirculation flow insufficient) is being discussed. Technician A says that ... Started by RYAN BANYAN	1 Replies 51 Views	Aug 13, 2021 by Missbam101
Which valve(s) is (are) normally closed? Started by formula1	1 Replies 22 Views	Aug 13, 2021 by ebenov
Which EVAP valve is subject to rust and corrosion more than all of the others? Started by burchfield96	1 Replies 69 Views	Aug 13, 2021 by rnehls
What makes activated charcoal ideal for trapping gasoline fumes? Started by craiczarry	1 Replies 137 Views	Aug 13, 2021 by raenoj
Two technicians are discussing a state emission test. Technician A says that a vent valve that is ... Started by debasdf	1 Replies 112 Views	Aug 13, 2021 by Sassygurl126
Technician A says that low pressure smoke installed in the fuel system can be used to check for ... Started by hbsimmons88	1 Replies 46 Views	Aug 13, 2021 by Eazy416
Technician A says that fuel filler caps with pressure and vacuum vents are used with EVAP system ... Started by lb_gilbert	1 Replies 189 Views	Aug 13, 2021 by Bison
Technician A says that canister purging occurs during wide open throttle conditions. Technician B ... Started by mspears3	1 Replies 118 Views	Aug 13, 2021 by joanwhite
Inadequate purge flow rate will trigger which DTC? Started by dalyningkenk	1 Replies 52 Views	Aug 13, 2021 by Jordin Calloway
Enhanced EVAP systems that are able to detect fuel vapor leaks were mandated on all U.S. cars ... Started by Mr3Hunna	1 Replies 125 Views	Aug 13, 2021 by tjayeee