PT Cruiser Forum  

Go Back   PT Cruiser Forum > 2.4L Turbo Forums > General Turbo Discussions

PT Cruiser Forum

Rough idle

LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 12 Sep 2010, 09:15 pm
Fresh Cruiser
Join Date: Aug 2010
Location: West palm beach, fl
Posts: 13
Send a message via AIM to PtTurbo04
Default Rough idle

my car had a rough idle so, i just did a tune up with champion irridium plugs gaped at .040 and new bosch wires, it still idle's rough with a/c on or a/c off.
Reply With Quote
  #2 (permalink)  
Old 13 Sep 2010, 12:51 am
Young Cruiser
Join Date: Aug 2010
Location: gulfport, ms
Posts: 73
Send a message via AIM to kingofyo1 Send a message via MSN to kingofyo1 Send a message via Yahoo to kingofyo1 Send a message via Skype™ to kingofyo1
Default Re: Rough idle

rough idle can mean many things, between computer settings, or fuel management, or injectors, or a TON of other things. have you changed your air filter recently? that could easily also be something to take a look at
Reply With Quote
  #3 (permalink)  
Old 13 Sep 2010, 09:36 am
Regular Cruiser
Join Date: Jul 2010
Posts: 185
Default Re: Rough idle

I had the same issue, i changed the plugs and nothing , did a intake nothing, put new wires on and it fixed it. So only thing left for you would be a air filter
Reply With Quote
  #4 (permalink)  
Old 13 Sep 2010, 10:15 am
Fresh Cruiser
Join Date: Aug 2010
Location: West palm beach, fl
Posts: 13
Send a message via AIM to PtTurbo04
Default Re: Rough idle

i have a cold air intake and the filter is not dirty. lol any other suggestions?
Reply With Quote
  #5 (permalink)  
Old 13 Sep 2010, 10:18 am
nevinsrt's Avatar
Cool Cruiser
Join Date: May 2008
Location: Albuquerque, NM
Posts: 383
Default Re: Rough idle

change you IAC, Idle Air Control sensor.

if you still have that problem after putting in the new one you may have a leaky intake manifold gasket or throttle body gasket or bad throttle body.

to test the gaskets you need to boost leak test.

to test the throttle body you need to look at the butterfly valve on the throttle body and see if there is any gaps and see if it opens fully.

03 SRT-4 132k mi ported stocker and lots of other stuff

68 Mustang Coupe project fail!!

PT Less - ex wife took in the divorce 3/2011
05 GT Cruiser H.O. last dyno 245hp/283tq @ 15psi OCT 08
3 in intake, Stage 1 PCM, Stage 2 WGA, ported turbo@21psi, 682cc, 160 deg T-stat, Check valve, Ngk 4306 plugs, 10mm spark plug wires, 3in O2, 3in DP, 3in Y-pipe with E-cutout, 2.5 in catback exhaust, upper/lower hardpipes, HKS SSQ bov, block off plate, Energy Suspention MM inserts, NSRT hawk HPS front/rear pads, NSRT Drilled/slotted rotors, NSRT steel braded front lines, Mopar 26mm Swaybar, NSRT energy suspention swaybar bushing, NSRT energy suspention swaybar endlinks, APC Non-turbo strut bar, Black housing headlights, Tinted rear tail lights, Schroth 4 point harness, Perrin catchcan, 3 pod a-piller, boost guage 30/30, oil pressure gauge, volt gauge
Reply With Quote
  #6 (permalink)  
Old 13 Sep 2010, 03:07 pm
Senior Cruiser
Join Date: Jan 2003
Location: Huntington Beach, CA, USA.
Posts: 1,799
Default Re: Rough idle

Fuel pressure could also cause rough idle. Pump going or just a dirty filter sock on the intake. Vacuum leak is also a typical culprit.
'03 Inferno Red GT, 5 speed, STAGE 1, Mopar BOV, Plastic Intake, Modified Upper and Lower Airbox, Custom Airbox-to-turbo pipe, Borla dual exhaust, Maddog Short Shifter, Drilled/Slotter Rotors, Ceramic Pads, chrome wheels, chrome door spears, AMP chrome fuel door, PT Cruiser 3rd light diffuser, H&R Springs, Rear Sway Bar added, MGW chrome door lock pulls, Blane's hood struts, Custom license plate mount, some interior dress up stuff...more to come
Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Rough Idle badkarma76 Tech & Performance Forum 30 21 Jul 2009 07:47 pm
Rough idle 03 GT elmeyer Tech & Performance Forum 2 03 Jul 2009 09:44 pm
Rough Idle, Rough @60, check engine light NEW Dystroy Tech & Performance Forum 8 12 Jan 2009 09:07 pm
rough idle on 01 2.4 Davestone General PT Cruiser Discussions 8 26 Mar 2008 09:52 pm
Rough idle PTPaul Tech & Performance Forum 1 17 Oct 2001 05:34 pm

All times are GMT -5. The time now is 06:47 am.

Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.