General Tech Help Good at troubleshooting? Have a non specific issue? Discuss general tech topics here...

99 sable bad PCM?

  #1  
Old 10-10-2010, 10:44 AM
Junior Member
Thread Starter
Join Date: Oct 2010
Posts: 2
Default 99 sable bad PCM?

I have a 99 sable OHV 3L. It has a misfire on cylinder 1. Coil pack, plugs, wires and injector were changed, the fuel rail system was cleaned. Don't notice the mis when I drive it. I was told it could be caused by bad PCM. It now started to develop a trans problem. When the speed odometer reaches 40 mph, it gose wacky then stops working. Soon after that the trans starts to slip once and a while. My question is can all this be caused by a bad PCM? Thanks in advance
 

Last edited by xoplex; 10-11-2010 at 06:10 AM.
  #2  
Old 10-10-2010, 12:46 PM
Member
Join Date: Aug 2010
Posts: 91
Default

Originally Posted by xoplex View Post
I have a 99 sable OHV 3L. It has a misfire on cylinder 1. Coil pack, plugs, wires and injector were changed, the fuel rail ayatem was cleaned. Don't notice the mis when I drive it. I was told it could be caused by bad PCM. It now started to develop a trans problem. When the speed odometer reaches 40 mph, it gose wacky then stops working. Soon after that the trans starts to slip once and a while. My question is can all this be caused by a bad PCM? Thanks in advance
Seeing how you don't notice the miss when driving tells me that the miss is an idle problem. I would look for a vacuum leak (bad vacuum hose, intake gasket) near the #1 intake that might be leaning out that cylinder.

For the intake gasket spraying something like carburetor cleaner the intake gasket and head will cause the engine idle to speed up if it is leaking. I'm not familiar with your particular engine, but I would start checking for any vacuum hoses first.
 
  #3  
Old 10-11-2010, 06:09 AM
Junior Member
Thread Starter
Join Date: Oct 2010
Posts: 2
Default

Also forgot to mention that I did a compression test all cylinders were equal around 116. I also changed the hoses and egr valve. Thanks for taking the time to trying to help Bulldozer
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
dov
Sable
0
12-13-2011 01:48 PM
pokermike123
Grand Marquis
0
04-05-2011 10:06 AM
dpigott
Grand Marquis
3
02-24-2011 10:39 PM
lumbreras
Sable
5
01-05-2006 02:47 PM
casinoman123
New Member Area
2
03-08-2005 11:01 PM


Thread Tools
Search this Thread
Quick Reply: 99 sable bad PCM?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

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.