94 ranger rough idle

Junkyarddog · 01-24-2011, 06:15 AM

Hi guys I have a 94 ranger with a 4.0 it was running perfect until a month ago all of a sudden I get a intermitten rough idle problem. It seems like it dose it after I turn it on and run it for a while and it cools for a few and then I go turn it on and it starts to shake I've gotten the acasuanl mis fire it sounds kind of like a knock but that dosent happen all the time I'll let t sit there for a few and then it clears itself up and runs fine, I've done a few things that have helped slightly but haven't taken care of the problem.

1. Changed the fuel filter
2. Changed plug wires had a few that were burnt
3. Cleaned aicv
4. Checked spark plugs were all good
5. Checked pcv valve and it was good

I've done some research and i starting to think it's the upper intake rubber gaskets I bought some carb cleaner and sprayed it on the intake and it seemed to clear up I'm going to try it again to make sure. If it is the problem would you guys just recommend replacing the uper gasket or should I do the bottom I currently don't have any oil leaks at all any help is appreciated thanks !

swetrid · 01-24-2011, 05:04 PM

Intake gaskets

Junkyarddog · 01-24-2011, 07:40 PM

Quote:

Originally Posted by swetrid

Intake gaskets

Right but should I do the upper only or lower and upper . I just don't want to do the lower if it isn't needed I found a write up on here already but I just want to make sure I do what needs to be done.

Junkyarddog · 01-28-2011, 04:36 AM

Any suggestions guys??? I want to try to takle this job this weekend but I don't want to replace the lower gaskets if they are not needed.

Junkyarddog · 01-29-2011, 09:09 PM

To the top........any ideas anyone?????

01-24-2011, 06:15 AM	#1
Junkyarddog Wannabe Elite Explorer 909 94 ranger Join Date: Jan 2011 Posts: 12 Vehicle Specs (Original Poster)	94 ranger rough idle Hi guys I have a 94 ranger with a 4.0 it was running perfect until a month ago all of a sudden I get a intermitten rough idle problem. It seems like it dose it after I turn it on and run it for a while and it cools for a few and then I go turn it on and it starts to shake I've gotten the acasuanl mis fire it sounds kind of like a knock but that dosent happen all the time I'll let t sit there for a few and then it clears itself up and runs fine, I've done a few things that have helped slightly but haven't taken care of the problem. 1. Changed the fuel filter 2. Changed plug wires had a few that were burnt 3. Cleaned aicv 4. Checked spark plugs were all good 5. Checked pcv valve and it was good I've done some research and i starting to think it's the upper intake rubber gaskets I bought some carb cleaner and sprayed it on the intake and it seemed to clear up I'm going to try it again to make sure. If it is the problem would you guys just recommend replacing the uper gasket or should I do the bottom I currently don't have any oil leaks at all any help is appreciated thanks !

01-24-2011, 05:04 PM	#2
swetrid Wannabe Elite Explorer Reading Pa 2001 Eddie Bauer Join Date: Sep 2010 Posts: 1,883 Vehicle Specs	Intake gaskets __________________ Resident Ford Tech for the last 17 years, 2001 Eddie Bauer 5.0L, Cherry Bomb Cat back, 2010 Ecoboost Flex

01-28-2011, 04:36 AM	#4
Junkyarddog Wannabe Elite Explorer 909 94 ranger Join Date: Jan 2011 Posts: 12 Vehicle Specs (Original Poster)	Any suggestions guys??? I want to try to takle this job this weekend but I don't want to replace the lower gaskets if they are not needed.

01-29-2011, 09:09 PM	#5
Junkyarddog Wannabe Elite Explorer 909 94 ranger Join Date: Jan 2011 Posts: 12 Vehicle Specs (Original Poster)	To the top........any ideas anyone?????