bucking in a 98 v6 - Ford Mustang Forum
 
LinkBack Thread Tools Search this Thread
post #1 of 11 (permalink) Old 03-29-2006 Thread Starter
 
7500mj's Avatar
 
Joined: Aug 2005
Posts: 31
 
Exclamation bucking in a 98 v6

Ive got a 98 v6 that has about 140000miles on it...when i let off the gas at about 25-35mph it bucks like either the tranny isnt finding the gear or the engine is seizing..i changed the spark pluges and the tranny fluid is fine..auto by the way. Also i have a check engine light that i checked and its telling me that both banks of my engine are running rich...wondered if anyone had a hint on how to go about fixing or exploring further these problems....thanks!

7500mj is offline  
Sponsored Links
Advertisement
 
post #2 of 11 (permalink) Old 04-02-2006
SHELBY GT 500 Member
V6 Member
 
kscoyote's Avatar
 
Joined: Aug 2002
Location: Topeka
Posts: 11,432
 
Quote:
Originally Posted by 7500mj
Ive got a 98 v6 that has about 140000miles on it...when i let off the gas at about 25-35mph it bucks like either the tranny isnt finding the gear or the engine is seizing..i changed the spark pluges and the tranny fluid is fine..auto by the way. Also i have a check engine light that i checked and its telling me that both banks of my engine are running rich...wondered if anyone had a hint on how to go about fixing or exploring further these problems....thanks!
If it's running rich, it's probably your MAF.


Woe to him who builds his palace by unrighteousness,his upper rooms by injustice,making his countrymen work for nothing...Does it make you a king to have more and more cedar?Did not your father have food and drink?He did what was right and just,so all went well with him. He defended the cause of the poor and needy,and so all went well...But your eyes and your heart are set only on dishonest gain,on shedding innocent blood and on oppression and extortion. Jer 22:13, 15-17
kscoyote is offline  
post #3 of 11 (permalink) Old 04-03-2006
 
sddunn's Avatar
 
Joined: Nov 2005
Posts: 83
 
same thing here. i tried cleaning the maf with contact cleaner and it didnt do anything . back to the drawing board
sddunn is offline  
 
post #4 of 11 (permalink) Old 04-03-2006
SHELBY GT 500 Member
V6 Member
 
kscoyote's Avatar
 
Joined: Aug 2002
Location: Topeka
Posts: 11,432
 
Quote:
Originally Posted by sddunn
same thing here. i tried cleaning the maf with contact cleaner and it didnt do anything . back to the drawing board
What year car do you have?

It can be 3 things -off the top of my head, anyway

1) Inaccurate readings from MAF, TPS, or some other air/fuel measurement.

2) clogged exhaust at EGR or Cats.

3) leaking fuel injectors
***********************************************

THere's an outside chance your timing chain jumped, and your timing is off .. . .

Hard to say when the engine's that old . . .

Woe to him who builds his palace by unrighteousness,his upper rooms by injustice,making his countrymen work for nothing...Does it make you a king to have more and more cedar?Did not your father have food and drink?He did what was right and just,so all went well with him. He defended the cause of the poor and needy,and so all went well...But your eyes and your heart are set only on dishonest gain,on shedding innocent blood and on oppression and extortion. Jer 22:13, 15-17
kscoyote is offline  
post #5 of 11 (permalink) Old 04-04-2006
 
sddunn's Avatar
 
Joined: Nov 2005
Posts: 83
 
mine is an 2002 with only 30,000 km not miles i have an after market flowmaster exhaust i think it has something to do with the k&n filter but i have been to lazy toput the stock one back on
sddunn is offline  
post #6 of 11 (permalink) Old 04-05-2006
SHELBY GT 500 Member
V6 Member
 
kscoyote's Avatar
 
Joined: Aug 2002
Location: Topeka
Posts: 11,432
 
Quote:
Originally Posted by sddunn
mine is an 2002 with only 30,000 km not miles i have an after market flowmaster exhaust i think it has something to do with the k&n filter but i have been to lazy toput the stock one back on
Have you disconnected your battery and reset the computer?

Woe to him who builds his palace by unrighteousness,his upper rooms by injustice,making his countrymen work for nothing...Does it make you a king to have more and more cedar?Did not your father have food and drink?He did what was right and just,so all went well with him. He defended the cause of the poor and needy,and so all went well...But your eyes and your heart are set only on dishonest gain,on shedding innocent blood and on oppression and extortion. Jer 22:13, 15-17
kscoyote is offline  
post #7 of 11 (permalink) Old 04-07-2006
 
sddunn's Avatar
 
Joined: Nov 2005
Posts: 83
 
ya did that and it didnt do anything
sddunn is offline  
post #8 of 11 (permalink) Old 04-07-2006
SHELBY GT 500 Member
V6 Member
 
kscoyote's Avatar
 
Joined: Aug 2002
Location: Topeka
Posts: 11,432
 
Quote:
Originally Posted by sddunn
ya did that and it didnt do anything
how many miles are on the car?

Woe to him who builds his palace by unrighteousness,his upper rooms by injustice,making his countrymen work for nothing...Does it make you a king to have more and more cedar?Did not your father have food and drink?He did what was right and just,so all went well with him. He defended the cause of the poor and needy,and so all went well...But your eyes and your heart are set only on dishonest gain,on shedding innocent blood and on oppression and extortion. Jer 22:13, 15-17
kscoyote is offline  
post #9 of 11 (permalink) Old 04-08-2006
 
sddunn's Avatar
 
Joined: Nov 2005
Posts: 83
 
30000 kmstill like new
sddunn is offline  
SHELBY GT 500 Member
V6 Member
 
kscoyote's Avatar
 
Joined: Aug 2002
Location: Topeka
Posts: 11,432
 
Quote:
Originally Posted by sddunn
30000 kmstill like new
HAve you looked for vacuum leaks?

Woe to him who builds his palace by unrighteousness,his upper rooms by injustice,making his countrymen work for nothing...Does it make you a king to have more and more cedar?Did not your father have food and drink?He did what was right and just,so all went well with him. He defended the cause of the poor and needy,and so all went well...But your eyes and your heart are set only on dishonest gain,on shedding innocent blood and on oppression and extortion. Jer 22:13, 15-17
kscoyote is offline  
 
sddunn's Avatar
 
Joined: Nov 2005
Posts: 83
 
ya there is only one hose going to the intake and that is the pcv line .worked fine till the cold air went on ???
sddunn is offline  
Sponsored Links
Advertisement
 
Closed Thread

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Mustang Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a VALID email address for yourself, otherwise you will not receive the necessary confirmation email needed to confirm, validate and activate your new AFM member account.

Failure to provide a VALID email address, will result in the cancellation of your new AFM member account registration.

Email Address:
OR

Log-in










Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search



Similar Threads
Thread Thread Starter Forum Replies Last Post
manual tranny or clutch problem? load V6 Tech 36 01-19-2006 12:10 PM
Mustang Gt bucking 05StangAwsomeca 2005-2010 Mustang GT Tech 6 10-30-2005 04:21 AM
Car bucking while doing a burnout....???? jbspeed86 5.0L Tech 9 09-13-2005 02:40 AM
HELP!!! Bucking and Jerking at cruising speed 88GTStreetRod 5.0L Tech 16 02-07-2004 05:03 AM

Posting Rules  
You may post new threads
You may 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 On

 
For the best viewing experience please update your browser to Google Chrome
 


Search Engine Friendly URLs by vBSEO 3.6.1