3rd new heater core in a year!!! - Great Lakes 4x4. The largest offroad forum in the Midwest

Go Back   Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Ford Tech
GL4x4 Live! GL4x4 Casino

greatlakes4x4.com is the premier Great Lakes 4x4 Forum on the internet. Registered Users do not see the above ads.
Search
Reply
 
Thread Tools Search this Thread
Old July 19th, 2008, 09:59 PM   #1
cjric
Senior Member
 
cjric's Avatar
 
Join Date: 11-13-05
Location: Kalamazoo
Posts: 1,505
iTrader: (6)
Mentioned: 0 Post(s)
Default 3rd new heater core in a year!!!

my 95 f-150 is starting to leak again from the heater core. I put a new one in about 2 months ago. That one replaced one that was no more than 6 months old. I read about a static charge problem that causes them to oxidize and wear out quickly, so I grounded it the last time I replaced it. Didnt help though, the new one is leaking already.

Anyone have any idea how to fix this?
cjric is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old July 19th, 2008, 10:40 PM   #2
unclebeaner
can you hear the banjos?
 
unclebeaner's Avatar
 
Join Date: 04-04-06
Location: Flat Rock 48134
Posts: 9,114
iTrader: (72)
Mentioned: 1 Post(s)
Default

is it rubbing anything? how are they failing? holes? falling apart? spontainiously combusting?
__________________
Avid collector of useless things.
unclebeaner is offline   Reply With Quote
Old July 20th, 2008, 07:10 AM   #3
cjric
Senior Member
 
cjric's Avatar
 
Join Date: 11-13-05
Location: Kalamazoo
Posts: 1,505
iTrader: (6)
Mentioned: 0 Post(s)
Default

pinhole leaks
cjric is offline   Reply With Quote
Old July 20th, 2008, 07:14 AM   #4
Yetti
Buy a Fiat! Save the UAW!
 
Yetti's Avatar
 
Join Date: 11-05-05
Location: 20 minutes south of Hell...
Posts: 14,385
iTrader: (10)
Mentioned: 2 Post(s)
Default

what does your coolant smell like? if its a real acidy smell then I would be looking for combustion gases in the coolant. they can and will eat stuff.
__________________
Yetti
Yetti is offline   Reply With Quote
Old July 20th, 2008, 09:24 AM   #5
XXXJ
Desert Rat
 
XXXJ's Avatar
 
Join Date: 03-09-07
Location: Memphis, Mi
Posts: 5,635
iTrader: (13)
Mentioned: 2 Post(s)
Default

did you get them from the same place?
Try a different supplier. Sounds like defective parts.
XXXJ is offline   Reply With Quote
Old July 21st, 2008, 09:04 PM   #6
cjric
Senior Member
 
cjric's Avatar
 
Join Date: 11-13-05
Location: Kalamazoo
Posts: 1,505
iTrader: (6)
Mentioned: 0 Post(s)
Default

i've gotten them from autozone. I've figured cheap defective parts could be the culprit, but 3 (one OEM) in a year?

Coolant smells fine.
cjric is offline   Reply With Quote
Old July 22nd, 2008, 10:25 AM   #7
greenbronco79
Newbie
 
greenbronco79's Avatar
 
Join Date: 07-13-08
Location: Kent City Michigan
Posts: 17
iTrader: (0)
Mentioned: 0 Post(s)
Default

Autozone? I love them to death but you bought a radiator from there?
greenbronco79 is offline   Reply With Quote
Old July 22nd, 2008, 10:35 AM   #8
Bow_Extreme
Senior Member
 
Bow_Extreme's Avatar
 
Join Date: 11-27-07
Location: Holland, MI.
Posts: 1,100
iTrader: (13)
Mentioned: 0 Post(s)
Default

What kind of coolant are you running? It should be the old standby green fluid. The newer orange/pink coolant will eat internal components apart in the older trucks like yours, therefore causing serious long term problems in every cooled component of your engine.
Bow_Extreme is offline   Reply With Quote
Old July 22nd, 2008, 02:19 PM   #9
mooseracing
Stuck like a MoFo
 
mooseracing's Avatar
 
Join Date: 10-12-06
Location: South GR
Posts: 385
iTrader: (3)
Mentioned: 0 Post(s)
Send a message via AIM to mooseracing
Default

Buy a zinc annode or however it is spelled. Supposedly my t-bird has the same type of issue and is recommened for a ground strap but I just run the zinc piece and am still on the orginal core.
mooseracing is offline   Reply With Quote
Old July 23rd, 2008, 08:36 AM   #10
cjric
Senior Member
 
cjric's Avatar
 
Join Date: 11-13-05
Location: Kalamazoo
Posts: 1,505
iTrader: (6)
Mentioned: 0 Post(s)
Default

I'was doing some research last night and it sounds like it's an electrolosys problem. Apparently fords are known for that. I havent tested it to see if I have any voltage, but the symptoms are there.
Ford has a TSB on it and says NOT to add any ground straps.

Moose- where did you get your zinc anode from? Was it something specifically designed for this application?
cjric is offline   Reply With Quote
Old July 23rd, 2008, 11:52 AM   #11
mooseracing
Stuck like a MoFo
 
mooseracing's Avatar
 
Join Date: 10-12-06
Location: South GR
Posts: 385
iTrader: (3)
Mentioned: 0 Post(s)
Send a message via AIM to mooseracing
Default

Quote:
Originally Posted by cjric View Post
Ford has a TSB on it and says NOT to add any ground straps.
Must be a t-bird thing then. The tech article with TSB infor over at tccoa.com has this infor for the birds with 4.6's and 3.8's.

Quote:
Preventing Against Repeat Heater Core Leaks
Issue:
Some vehicles may exhibit repeat heater core leaks. This may be caused by a chemical reaction called electrolysis. Electrolysis involves an ion exchange between the heater core and engine coolant which can result in a breakdown of the heater core material. This is similar to the operation of a battery.

Action:
1. To check for electrolysis use a DVOM set on DC volts. Place the pos (+) probe in the engine coolant and the neg (-) on the neg battery post.

2. Adjust throttle to 2000 RPM to get the flow going and true electrolysis voltages.

3. If more then .4V is seen, flush the coolant and recheck.

4. If there is still excessive voltage present check the body/battery grounds. Also, verify proper grounding of aftermarket stuff that has been installed.

5. If the condition is still present after the grounds have been checked, it may be necessary to add extra grounds to the HEATER CORE and engine. I replaced the weak school engine grounds with thick SS straps from Summit on each side of the motor. A hose clamp can be used to secure a 16 AWG stranded copper wire to the heater core inlet tube. The other end should be secured to an EXISTING FASTENER on the body sheet metal. Extra grounds should be attached between existing fasteners on the engine and body sheet metal. Verify continuity of any added grounds to the neg (-) batt terminal.

6. If the condition is STILL present, add a restrictor (PN F1UZ-18D406-A) on the inlet hose with the arrow facing the direction of coolant flow (toward heater core). Cut the line and install it as close to the engine as possible (not near the heater core itself).


The ZinC anondes are designed to keep your cooling sytem from eating away at everything, so designed specfically for what application? They are desgined for cooling system use.

The kind I bought were from a local speed shop (Lane Automotive). They are made by Flex -a-lite (iirc) so I would think Summit and Jegs would carry them.

There are about 1/4" diam and maybe 2" long. The directions say to remove the drain plug and insert them there, it was too long for my truck. So I drilled a hole in it and have it hanging in the overflow tank of my t-bird which actually has the radiator cap there.
mooseracing is offline   Reply With Quote
Old July 23rd, 2008, 02:22 PM   #12
cjric
Senior Member
 
cjric's Avatar
 
Join Date: 11-13-05
Location: Kalamazoo
Posts: 1,505
iTrader: (6)
Mentioned: 0 Post(s)
Default

Thanks for the info!
cjric is offline   Reply With Quote
Reply
Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Ford Tech

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -5. The time now is 09:59 AM.


Powered by: vBulletin, Copyright 2000 - 2012, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
Page generated in 0.20596 seconds with 56 queries