.fb-login-button.fb_iframe_widget.fb_hide_iframes span {display:none;}
  • Register

Get upfront auto repair quotes from reputable shops in your area | itimaster.ru Local
Need Auto Repairs?
Get a Free Quote
Get upfront auto repair quotes from reputable shops in your area.
itimaster.ru Marketplace

37,855 questions

24,942 answers


25,574 users

Top Users

Reynaldo 10,835 Points
Carguy1 7,342 Points
G37driver 3,517 Points
OBDIITech 2,932 Points
OBDtech2 165 Points
corvette-78 127 Points
knowledge 1488 124 Points
Lemuel Alfaro 121 Points
Samat Bekov 117 Points
ptl 113 Points

Can a vacuum leak cause a P0301 Cylinder 1 Misfire code?

I have changed my spark plugs and have switched coils between cylinder 1 and 3 on my 2004 Subaru Forester XT, but the problem is staying in cylinder 1.

The car has trouble starting, very rough idle, hard brakes, and very minimal power. The shift between gears (automatic) seems to have a mild clunk.

I'm trying to figure out if I should start messing with the fuel system or try to find a vacuum leak.
Vehicle: 2004 Subaru Forester XT 2.5 Turbo (Stock)
asked Mar 2, 2017 by Casey

1 Answer

HI there

A vacuum leak can cause a misfire, typically the leak would have to be along the intake manifold for it to cause a misfire however.
answered Mar 3, 2017 by Carguy1 (7,342 points)

Related questions

1 answer
166 views asked Jun 2, 2016 by Avery
1 answer
167 views asked Mar 25, 2015 by rrgirard
1 answer
157 views asked Nov 9, 2015 by loewen89
1 answer
79 views asked Oct 24, 2015 by anonymous
1 answer
83 views asked Oct 12, 2015 by Jaime Palma (101 points)
Home - Home - For Shop Owners - About itimaster.ru - Privacy Policy - Terms and Conditions - - Copyright 2010-2018 itimaster.ru

itimaster.ru - - -

Related pages

mazda meaning1997 honda accord alternator replacement2003 nissan sentra service engine soon lightdtc definitionsford excursion australia2006 toyota corolla transmission fluid2002 nissan maxima oil changebmw heater problemsvw diagnostic codes2003 nissan altima catalytic converterpo352vauxhall insignia fault codescylinder 4 misfire detected2002 toyota camry o2 sensor2003 toyota camry intake manifold2002 buick rendezvous engineisuzu npr injectorsford f150 coils2001 jetta 4 cylindercode po303engine code po1282006 nissan maxima gas mileagenissan camshaft position sensortoyota hariacabrales auto repair chicago14935 jf00b2001 vw passat oilsuburban cylinder expresslexus maf sensoregr honda accordlexus rx300 oilvsc light toyota highlander2003 nissan maxima alternator replacement2002 mitsubishi lancer engineacura electricalprelude intakecamshaft sensor cost to replacepo3042000 camry engine diagram2001 ford taurus alternatorfrancheska riveravdc off nissan xterralexus definitiontpms light honda accord 20102002 nissan ultimalincoln ls check engine lighthonda transaxle2001 ford taurus fuel pump99 honda crv02 heater circuit bank1 sensor1canister purge valve solenoid symptomsp0420 honda accord 2007land rover discovery 2001 problemstransmission honda accord 20022006 saturn vue transmission problemsmultiple misfirechevrolet venture 2001 problemskia sorento injector problems2006 ford explorer oil light resetsuzuki xl7 check engine lightobd code p0402po1870 codetruck shop adrian mibrake masters pomona ca2005 honda civic oilantifreeze for honda civicp0172 obdmazdaspeed 3 camshaftcadillac 2007 stsp0455 evaporative emission system leak detected large leaknissan immobilizer bypass2000 nissan maxima exhaust system2001 saturn sl1 transmission problemsvvt meansp0353 ford f150milts transmission350z catalytic converter