Heater core leak and a "mis-fire?" - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 04-30-2007, 04:51 AM
Compression Ignition Addict
 

Join Date: Apr 2006
Posts: 326
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Heater core leak and a "mis-fire?"

If it ain't one thing, its another. I think I need to have an exoricist pay a visit to my Beastie. Ended up on a "short" (about 400 mi one way) run a couple of days ago and noticed the distinct smell of anti-freeze coming from the defrost vents. Turns out there was a major, to my thinking, leak somewhere in the heater core. Looked under the hood and everything was clean (relatively speaking) but underneath there was a fast dripping of anti-freeze as well as some leaking onto the floorboard/pass. side. I stopped at a service station and picked up a gallon of anti-freeze and 2 bottles of BarJan stop leak. Well, it appears the stop leak worked, and I might add rather quickly. Topped of the resovoir(sp) and finished the run and made it back home without any leaks, but I still have the strong odor of anti-freeze whenever I turn on the blower fan. So I'm guessing I need to somehow remove the core cover and wash it out. I know the core will have to be replaced but finances right now just won't allow it. (so broke I can't even pay attention) Also, and I think the most important thing here, it this damme engine miss. Which I'll try to explain in 43,000 words or less..(fat chance guys..LOL). This "miss-fire" (which feels like its from only one cyl.)seems more pronounced when, A: the tranny upshifts a bit too early into 4th(?) and/or O/D and drops the RPM down to 14-1800. When this situation happens the engine really struggles and I usually have to manually turn the O/D off. The RPM's jump up and it "smoothes out". I'm sure it's still there just less noticable. B: Whenever I'm climbing a grade and she downshifts out of O/D, the miss will shake the heck outta the truck from aroud 2700 RPM and up. It's always there(the miss) just more pronounced during these 2 conditions. Now to my rather simple-minded thinking, I have either a bad/loose harness, or a failing/weak injector. To my recollection, it started doing this after Allegheny Ford replaced the PCM, and seriously, I don't have the money to take it somewhere else to have codes read. Trying to get this Beastie running right has put me so far behind on my bills somethimes I think I'm ahead. I know that the reader they have down at Advance Auto Parts won't read anything on this Beastie so thats not an option. And any work that needs to be done will have to be done by me and on the REAL cheap. She doesn't have much power, dogs a LOT on grades and on a really GOOD run, I'll see 10, maybe 10.5 MPG. If she's actually got a bad/mis-firing injector or a loose UVC harness, on just ONE cyl, thats 12 1/2% of my mileage AND power. Any thoughts one probable causes, ie what to look for first and go from there would be of tremendous help. And while I'm here, and to add another chapter to this Novella, going up hill, "pedal-to-the-metal, the most boost I've ever seen is about 13psi...isn't that just a tad bit low???

Last edited by howardtm; 04-30-2007 at 05:00 AM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 04-30-2007, 03:06 PM
Compression Ignition Addict
 

Join Date: Apr 2006
Posts: 326
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
bumping this up...anyone?
Reply With Quote Quick reply to this message
  #3  
Old 04-30-2007, 03:09 PM
Jon
Guest
 
Posts: n/a
?

Year and model?
Reply With Quote Quick reply to this message
  #4  
Old 04-30-2007, 03:36 PM
Compression Ignition Addict
 

Join Date: Apr 2006
Posts: 326
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
03 E550, 7.3l, auto, 4.88 rear, full guages, no chip (yet), 4" exhaust down pipe won't fit and can't find a decent intake..but one of these days I'll have time and money to just make my own. The engine has the date of (05 Feb 99) on the valve cover label so I have no idea of the mileage on this puppy.
PS pics are posted in "my garage"
Reply With Quote Quick reply to this message
  #5  
Old 05-01-2007, 03:29 AM
Compression Ignition Addict
 

Join Date: Apr 2006
Posts: 326
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Bumpin' up again...anyone got any ideas?
Reply With Quote Quick reply to this message
  #6  
Old 05-02-2007, 02:20 PM
Powerstroke.org Fanatic
 

Join Date: May 2006
Location: South Carolina Lowcountry
Posts: 96
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Sounds like mine did couple months ago. Buzz test number 2 injector did not buzz. That was the same injector that was replaced 9 months prior. Injector was fine, wiring was the problem. Replaced valve cover gasket and under valve cover harness.

Chris
Reply With Quote Quick reply to this message
  #7  
Old 05-02-2007, 04:16 PM
Compression Ignition Addict
 

Join Date: Apr 2006
Posts: 326
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
thanks 014..that might give me a starting point..maybe Woltz and wind can do a buzz test for me...ain't got the cash go go see Scott W down NC way just yet. Did your's throw any kind of code?
Reply With Quote Quick reply to this message
  #8  
Old 05-02-2007, 05:26 PM
Powerstroke.org Fanatic
 

Join Date: May 2006
Location: South Carolina Lowcountry
Posts: 96
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I was up in Tenn visiting my parents, no warning, started skipping, try driving up a 6 degree mountain, climbing 1800 feet in six miles on 7 cylinders (If you have to do this stay in second gear). Went back down the mountain to an Autozone, the scanner they had did not pull any codes. SES light was on, would go off and run fine every once in awhile. Drove it home 230 miles and sucked down a tank of fuel, getting almost 1/2 the MPG as normal. Took it to a local guy that was the FORD certified diesel tech and a couple years ago he opened his own shop. He ran the buzz test for no charge, told me number 2 sounded bad, I replied just replaced that one 9 months ago. He replaced the valve cover gasket and the under valve cover harness. When I had the injector replaced we changed the UVC harnesses on both sides, I suspect it was probably just the connectors on the gasket was bad, anyway he did both valve cover gaskets and both UVC harnesses while he was in there and charged me less than 300.00. I am hoping I am good to go for awhile. I think my truck knows when I have extra money and it finds ways to get it from me.
Reply With Quote Quick reply to this message
  #9  
Old 05-03-2007, 02:56 AM
Compression Ignition Addict
 

Join Date: Apr 2006
Posts: 326
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Man...I know EXACTLY what you mean...our trucks must be secretly talking with each other. In all honesty here...I wish to he*l I'd never gotten a diesel. They're noisy, maintence intensive, unforgiving in that maintence, and it seems go south more often than any gasser I've ever owned in my life. And when they go wrong...they do it in a very expensive way! My 350 and 550 both have about the same miles on em and side by side...the 5.4 in the E350 will run circles around the diesel. It has NEVER failed to start, Never failed to get me where I needed to go AND back again, and the most expensive repair was replacing the right side head..only because the idiot replacing an exhaust gasket busted off 3 manifold bolts in the head.( which I had to pay for!)..All that..well, can't say the same for the 7.3, I've owned it for a year now and been nothing but a moneypit. I pray daily to the Diesel God, that one day it will be as dependable as my 14 footer 350, but somehow, I doubt that will happen.
Reply With Quote Quick reply to this message
  #10  
Old 05-03-2007, 03:45 AM
Powerstroke.org Fanatic
 

Join Date: Apr 2006
Location: KC area
Posts: 107
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Take it to a local Oreily's or Auto zone and see if they can read the codes. They usally do it for free. As long as the guy running the reader can follow directions and its's putting out a code it should give you a starting place.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel 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.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

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 On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 05:08 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors