Head gaskets again!!?
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Head gaskets again!!?
Hi guys
two years ago (12000mi now total 75,000 mi) I had my head gaskets were done buy a ford dealer because they were bad, they also installed ARP studs, checked but did not machine the heads,and did a egr blockoff and a SCT tuner with inovative tunes used only on ecomy setting.
Thanks much
two years ago (12000mi now total 75,000 mi) I had my head gaskets were done buy a ford dealer because they were bad, they also installed ARP studs, checked but did not machine the heads,and did a egr blockoff and a SCT tuner with inovative tunes used only on ecomy setting.
Since the I have not pulled much till the other day when I was pulling a trailer 14K and the outside temp was 10F. The fan started kicking in but the water temp did not go above 183F then antifreeze started puking out. I stopped a good diesel shop and we did the CO test to the degass bottle and there is exhaust in the antifreeze.
Any thoughts before we tackle the job. Can the heads be remove with studs and not taking off the cab and are the arp studs reuseable? Thanks much
Post Fiend
Joined: Oct 2009
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From: N. Fort Worth, tx
what was the differance between eot and ect?
headstuds can be reused just need more molly. arp's molly is great stuff too.
headcan be removed with studs.... unbolt head, unscrew studs, remove studs, remove head.
excessive differance between ect/eot can cause this aswell as blowing headgaskets
headstuds can be reused just need more molly. arp's molly is great stuff too.
headcan be removed with studs.... unbolt head, unscrew studs, remove studs, remove head.
excessive differance between ect/eot can cause this aswell as blowing headgaskets
More Turbo
Joined: Jun 2007
Posts: 537
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From: Carvel, AB, Canada
Sorry didn't notice the EGR block off in the post. I always thought though that with head gaskets, you would smoke like crazy. While with the EGR cooler you puke coolant. Is that not the general rule of thumb? It would also help explain why there was only a small rise if any in coolant temp. It's over pressuring from the exhaust, not over heating.
Post Fiend
Joined: Oct 2009
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From: N. Fort Worth, tx
head gaskets normally wont smoke on an engine with reayy high compression or boost. the coolant and exhaust gas is pushed back in to the cooling system. egr coolers will smoke like mad but I have seen a few that will puch coolant out of the degas tank as well
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Thanks for the replys. the dealer said they used the frost plug block off but I dont know that for sure. The ERG valve is still there but the wire is unpluged.
I did a firmware update on my SCT tuner and now it does not give me the option for oil temp like it did before. That said when I was pulling I did not have the data logger hooked up. but not pulling it would stay within 20f while driving but at an idle after driving of sometime it went up 50f more than coolant.Just thinking here is there any other way that CO can get into my coolant I understand that puking coolant can come form egr cooler but CO? thanks for any help!!
I did a firmware update on my SCT tuner and now it does not give me the option for oil temp like it did before. That said when I was pulling I did not have the data logger hooked up. but not pulling it would stay within 20f while driving but at an idle after driving of sometime it went up 50f more than coolant.Just thinking here is there any other way that CO can get into my coolant I understand that puking coolant can come form egr cooler but CO? thanks for any help!!
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Just wanted to add the problem the first time the gaskets had to be replaced was my superchips tuner and there the heads were lifting,it pressure tested fine and no puking. I realy thought I solved this problem but.....
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More Turbo
Joined: Jun 2007
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From: Carvel, AB, Canada
Thanks for the clarification.
Postmaster
Joined: Jul 2005
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From: Abilene, Texas
Thanks for the replys. the dealer said they used the frost plug block off but I dont know that for sure. The ERG valve is still there but the wire is unpluged.
I did a firmware update on my SCT tuner and now it does not give me the option for oil temp like it did before. That said when I was pulling I did not have the data logger hooked up. but not pulling it would stay within 20f while driving but at an idle after driving of sometime it went up 50f more than coolant.Just thinking here is there any other way that CO can get into my coolant I understand that puking coolant can come form egr cooler but CO? thanks for any help!!
I did a firmware update on my SCT tuner and now it does not give me the option for oil temp like it did before. That said when I was pulling I did not have the data logger hooked up. but not pulling it would stay within 20f while driving but at an idle after driving of sometime it went up 50f more than coolant.Just thinking here is there any other way that CO can get into my coolant I understand that puking coolant can come form egr cooler but CO? thanks for any help!!
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That was my first thought. I have a new oil cooler kit sitting on my bench and was going to buy a complete EGR delete and replace them both but I hate to do that with the results of CO in the degass bottle and delay the envetable.
Post Fiend
Joined: Oct 2009
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From: N. Fort Worth, tx
ok heres my thinking if you have access to a cooling system vacuum tester then I would pull a vacuum of 25" on the system and check for bleed off over a 30 min period of time. if you have bleed off you either have a leak somewere or a failed freeze plug that was used to block off the cooler. also if the plugs were not weled all the way around then that would also be a sorce of a leak.
now on to the carbon monoxide (CO) question. CO is exhaust gas, what to you think runs through the egr cooler? that would be hot exhaust gas so you would in fact have the same test results.
now on to the carbon monoxide (CO) question. CO is exhaust gas, what to you think runs through the egr cooler? that would be hot exhaust gas so you would in fact have the same test results.
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Thanks Ill try to find a vacuum tester and check it. As for the EGR cooler I didnt think that exhaust pressure would be greater than the coolant pressure to force CO back into the antifreeze through the egr cooler if it was cracked but thats thy you guys are the experts and I ask all the questions I can.
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