91 mustang gt help??? - MustangForums.com


5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Reply
 
 
 
Thread Tools Search this Thread
Old 07-28-2010, 03:03 PM   #1  
kigamkcalb17
Thread Starter
 
Join Date: Jul 2010
Posts: 3
Default 91 mustang gt help???

ok i purchased a 91 mustang gt 5.0 aod when im drive in 3rd around 35 or 4th around 45 im at around 1000 rpm the car stutters an jumps back an fourth a bit it also sounds like its missing a bit if i just rev it up to 1000 rpm after driveing for about 15 20 mins the cel wil come on an through code 91 12 33 and 41 im pretty sure i need to replace the 02s the egr valve is off with a block off plate but i still have the sensor hooked up so it wont through a code it has msd cap msd wires autolite copper core plugs gapped at 40 not sure where the timeing is i have no light to check i run 93 octane fuel can anyone give me a idea as to why im jumping??? i will greatly appreciate the help thanks if you need more info to help diagnose the problem let me know
kigamkcalb17 is offline   Reply With Quote
Old 07-28-2010, 03:08 PM   #2  
kigamkcalb17
Thread Starter
 
Join Date: Jul 2010
Posts: 3
Default

also the car has a shift kit in it dont know if that will matter or not
kigamkcalb17 is offline   Reply With Quote
Old 07-28-2010, 07:50 PM   #3  
enix187
3rd Gear Member
 
enix187's Avatar
 
Join Date: Apr 2007
Location: NC
Posts: 590
Default

is your tv cable hooked up? that rpm sounds really low for the auto, I don't remember exactly what my auto ran around those speeds but I believe it was two too three hundred more rpm's
enix187 is offline   Reply With Quote
Old 07-30-2010, 12:56 PM   #4  
kigamkcalb17
Thread Starter
 
Join Date: Jul 2010
Posts: 3
Default

its a miss it does it at idle too ive notice i have a really bad leak from my header im get it fixed an then try an figure out the miss
kigamkcalb17 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
**New...from NAT! 2015 Ford Mustang MRT Rear Window Louvers**Free shipping! NorthAmericanTuning Vendor For Sale / Group Buy Classifieds 5 11-09-2016 11:45 AM
**New from NAT!2015 Ford Mustang MRT Rear Window Louvers**Free Shipping! NorthAmericanTuning The New S550 2015-2017 Mustang 3 03-18-2016 11:21 AM
New from Pittsburgh chain New Member Area 6 08-17-2015 08:52 AM
Installed SF3/X3 for a 2005 mustang GT on a 2009 mustang V6. 'stangdude 4.6L V8 Technical Discussions 5 08-12-2015 01:27 PM
Just swapped motor exhaust want fit daytooday Motor Swap Section 2 08-11-2015 09:22 AM


Tags
33, 91, 91mustang, block, code, egr, gt, mustang

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Advertising
Featured Sponsors
Vendor Directory

All times are GMT -5. The time now is 06:32 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.