Ford Ranger Forum - Forums for Ford Ranger enthusiasts!

Go Back   Ford Ranger Forum - Forums for Ford Ranger enthusiasts! > >
Forgot Password? Join Us!

Welcome to Ford Ranger Forum

Reply
 
Thread Tools Search this Thread

  #1  
Old 06-21-2010, 12:58 PM
bordum128 bordum128 is offline
Like the Forums
 
Join Date: Jun 2010
Posts: 40
Default Sputter/Die after battery disconnect?? (Not sure where to post)

Ok, I have had the "System too lean bank 1 & 2" code for like 1,000 miles now. I have changed the air filter, cleaned the MAF and changed the thermostat. Each time I have done these things, I have disconnected the negative on the battery to work on it. HERE IS THE WEIRD THING; every time I reconnect the battery and go to start the truck, it just sputters and eventually dies. I found that if I put it in like Neutral or Drive then back to Park, it will change the idle. I end up having to start it like 15-20 times before it finally starts. Then it runs fine after that. Any ideas? Is it just the simple fact that the computer is all messed up when I disconnect the battery? Thanks everyone!!
__________________
2001 Ranger 3.0 V6 Flexfuel 2-wheel drive
Reply With Quote
  #2  
Old 06-21-2010, 04:38 PM
mickblock mickblock is offline
Get off my lawn
 
Join Date: Apr 2010
Posts: 1,059
Default Re: Sputter/Die after battery disconnect?? (Not sure where to post)

Quote:
Originally Posted by bordum128 View Post
Is it just the simple fact that the computer is all messed up when I disconnect the battery?
No. Your engine should still run well after the battery is disconnected.

In fact this could be a symptom of what the problem is. I don't know the degree to which the PCM can compensate for or disregard any given sensors input, but that learned response that is specific to your engines condition is getting lost when the PCM is powered off.

Point is, concentrate on the code. You don't wanna run your engine lean. I think that the weird thing is a just a symptom.

Is that why you tried changing your thermostat? Engine getting hot? If so it only verifies the accuracy of the code.
__________________
08 4.0 Sport 4x4
Stock
Reply With Quote
  #3  
Old 06-21-2010, 05:00 PM
FireRanger FireRanger is offline
Blinded by the light
 
Join Date: Sep 2009
Posts: 7,674
Send a message via AIM to FireRanger
Default Re: Sputter/Die after battery disconnect?? (Not sure where to post)

Well, I'm not sure why you did all that stuff since none of it has anything to do with a bank too lean condition. And none of those things you did require disconnecting the battery.

The lean condition I guarantee you is a vacuum leak. Behind the intake manifold under the ignition wires there are several vacuum lines. One of them is cracked and leaking. It's common and causes that condition.

When you disconnect the battery, it resets everything the computer has learned about idle. It has to relearn it which takes time. That combined with your vacuum leak is probably making it worse.
__________________
(Formerly)
FireRanger
2003 Edge 4.0 4wd

How to: Aux light wiring, relays, & fuses
Info: 300+ intake threads here on FRF
Info: HID Projectors
How To: NO HEAT Troubleshooting Guide
Reply With Quote
  #4  
Old 06-21-2010, 05:03 PM
01_ranger_4x4 01_ranger_4x4 is offline
OIF Veteran

 
Join Date: Feb 2010
Posts: 6,043
Default Re: Sputter/Die after battery disconnect?? (Not sure where to post)

Quote:
Originally Posted by FireRanger View Post
Well, I'm not sure why you did all that stuff since none of it has anything to do with a bank too lean condition. And none of those things you did require disconnecting the battery.

The lean condition I guarantee you is a vacuum leak. Behind the intake manifold under the ignition wires there are several vacuum lines. One of them is cracked and leaking. It's common and causes that condition.

When you disconnect the battery, it resets everything the computer has learned about idle. It has to relearn it which takes time. That combined with your vacuum leak is probably making it worse.
X2 lean bank one and two at the same time almost always means vacuum leak.
__________________
2001 Ranger 4x4 Stepside
-RCD Suspension lift
-33x12.5 BFG KM2's on Mickey Thomson classic locks
-4:56 gears
-Auburn gear LS
-James Duff traction bars
-Headers
-Flowmaster duals
-SCT X-Cal2 and some small exterior mods

http://www.cardomain.com/ride/2321189

2005 F-150 Lariat 4x4
-LED third brake light
-Weathertech floor liners
-Edge tuner
Reply With Quote
  #5  
Old 06-21-2010, 05:27 PM
bordum128 bordum128 is offline
Like the Forums
 
Join Date: Jun 2010
Posts: 40
Default Re: Sputter/Die after battery disconnect?? (Not sure where to post)

OK, thanks everyone. The reason I did all those other things was moreless just routine maintence. FIRERANGER, I do have a question.... Ok, so I have checked just about every hose I could find. I found what I THINK is the PCV valve. Its on the top of the engine, in the back under a bunch of other damn wires. I grabbed the hose to see if it had leaks and I noticed that the hose runs under the friggen exhaust manifold! I can seem to check the entire hose (cant get my hand back far enough)! Also, the PCV valve just lifts right out of its hole. I dont even have to try, I just put my finger in it and it lifts right out! No pressure, no suction, nothing!! Is that thing supposed to me snug??? Ill try to post a picture of it in a few minutes... Thanks everyone!!
__________________
2001 Ranger 3.0 V6 Flexfuel 2-wheel drive
Reply With Quote
  #6  
Old 06-21-2010, 05:44 PM
FireRanger FireRanger is offline
Blinded by the light
 
Join Date: Sep 2009
Posts: 7,674
Send a message via AIM to FireRanger
Default Re: Sputter/Die after battery disconnect?? (Not sure where to post)

I'm not familiar with the device you're talking about. Vac hoses you can't check by hand. Spray ether (starter fluid) or something around the hoses back there. If there is a leak, it will suck it in and you'll hear the engine rev up.
__________________
(Formerly)
FireRanger
2003 Edge 4.0 4wd

How to: Aux light wiring, relays, & fuses
Info: 300+ intake threads here on FRF
Info: HID Projectors
How To: NO HEAT Troubleshooting Guide
Reply With Quote
  #7  
Old 06-21-2010, 05:51 PM
bordum128 bordum128 is offline
Like the Forums
 
Join Date: Jun 2010
Posts: 40
Default Re: Sputter/Die after battery disconnect?? (Not sure where to post)

OK, I am 100% certain it is my PCV valve. Is it supposed to be snug?
__________________
2001 Ranger 3.0 V6 Flexfuel 2-wheel drive
Reply With Quote
  #8  
Old 06-21-2010, 06:01 PM
bordum128 bordum128 is offline
Like the Forums
 
Join Date: Jun 2010
Posts: 40
Default Re: Sputter/Die after battery disconnect?? (Not sure where to post)

Is this my PCV valve?
Attached Images
File Type: jpg PCV.jpg (44.9 KB, 12 views)
__________________
2001 Ranger 3.0 V6 Flexfuel 2-wheel drive
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Engine Sputter - 1994 Ford Ranger XLT 4.0L Unknowndady 4.0 SOHC / 4.0 OHV Tech 9 04-01-2015 06:31 AM
Poor Idle/Die after battery disconnected! HELP!! bordum128 3.0 Vulcan Tech 2 06-21-2010 02:49 PM
winch quick disconnect surfer03133 Electrical Tech 7 12-28-2009 08:20 PM
HELP Need to disconnect alarm mattpresley Electrical Tech 0 06-07-2009 04:20 PM
1985 Ford Ranger 2.3 L Spicker and Sputter issue? ballaforever2007 Electrical Tech 3 06-02-2009 12:33 PM