Skills and Trades

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The PCV system controls which exhaust emission(s)? Started by james	1 Replies 69 Views	Aug 13, 2021 by tdewitt
Technician A says that the PCV system should create a slight pressure in the crankcase at idle. ... Started by DyllonKazuo	1 Replies 100 Views	Aug 13, 2021 by babybsemail
Technician A says that if the PCV valve were defective or clogged, the engine could idle rough. ... Started by evelyn o bentley	1 Replies 84 Views	Aug 13, 2021 by Tonny
Technician A says that if a PCV valve rattles, then it is okay and does not need to be replaced. ... Started by wrbasek0	1 Replies 67 Views	Aug 13, 2021 by ong527
Technician A says that CO and HC levels should increase if the AIR hoses are pinched off. Technician ... Started by jparksx	1 Replies 102 Views	Aug 13, 2021 by Jsherida
Technician A says that a 3 5 card should be held against the oil fill opening if the PCV system is ... Started by Awilson837	1 Replies 77 Views	Aug 13, 2021 by Kdiggy
How much of the air needed by the engine flows through the PCV system when the engine is at idle speed? Started by jayhills49	1 Replies 85 Views	Aug 13, 2021 by beccamahon
A P0410 DTC indicates a problem with ________. Started by crobinson2013	1 Replies 51 Views	Aug 13, 2021 by josephsuarez
Blocking off the EGR valve passages will have no effect on the OBD-II system. Started by Garrulous	1 Replies 59 Views	Aug 13, 2021 by Anton
Which of the following are symptoms of a clogged EGR passage? Started by sam.t96	1 Replies 109 Views	Aug 13, 2021 by ky860224
When testing an EGR system for proper operation using a vacuum gauge, how much should intake ... Started by faduma	1 Replies 74 Views	Aug 13, 2021 by bubulittle310@msn.cn
Two technicians are discussing clogged EGR passages. Technician A says that clogged EGR passages can ... Started by RRMR	1 Replies 127 Views	Aug 13, 2021 by adf223
Technician A says that a low-restriction exhaust system could prevent a back pressure-type ... Started by dollx	1 Replies 85 Views	Aug 13, 2021 by Jadwiga9
OBD-II regulations require that the EGR system be tested. Technician A says that the PCM can monitor ... Started by Davideckstein7	1 Replies 71 Views	Aug 13, 2021 by brittrenee
EGR is used to control which exhaust emission? Started by BRWH	1 Replies 57 Views	Aug 13, 2021 by Yixagurpuldink
An EGR valve that is partially stuck open wouldmost likelycause what condition? Started by ereecah	1 Replies 93 Views	Aug 13, 2021 by momtoalll
A vehicle comes into the shop and the technician retrieves the diagnostic code P0401 "EGR flow ... Started by Evvie72	1 Replies 78 Views	Aug 13, 2021 by sarahccccc
A P0401 DTC (exhaust gas recirculation flow insufficient) is being discussed. Technician A says that ... Started by bobbie	1 Replies 90 Views	Aug 13, 2021 by Athena23
Which EVAP valve is subject to rust and corrosion more than all of the others? Started by rayancarla1	1 Replies 214 Views	Aug 13, 2021 by joneynes
What makes activated charcoal ideal for trapping gasoline fumes? Started by folubunmi	1 Replies 115 Views	Aug 13, 2021 by BUTTHOL369
Two technicians are discussing a state emission test. Technician A says that a vent valve that is ... Started by skymedlock	1 Replies 69 Views	Aug 13, 2021 by jordangronback
Technician A says that low pressure smoke installed in the fuel system can be used to check for ... Started by stevenposner	1 Replies 59 Views	Aug 13, 2021 by dawsa925
Technician A says that fuel filler caps with pressure and vacuum vents are used with EVAP system ... Started by karlynnae	1 Replies 85 Views	Aug 13, 2021 by Brenm
Inadequate purge flow rate will trigger which DTC? Started by luvbio	1 Replies 78 Views	Aug 13, 2021 by ally
Before an evaporative emission monitor will run, the fuel level must be where? Started by mspears3	1 Replies 54 Views	Aug 13, 2021 by mochi09