oil in coolant

efulton95 · December 15th, 2008, 12:37 AM

my friend has a 96 v6 and we think he might have blown a head gasket but arnt possitive. There was clearley a blown hose but the thing we are confused about it there is oil in the coolant resivoir. the hose that blew was a coolant hose not oil. I have heard it could be any of the following, head gasket, intake gasket, or timing cover seal, does anybody have an idea? We put a new hose on it and there doesnt seem to be any major leaks but the oil in the coolant makes me think something had to break internally. any input would be appriciated and if i was wrong about anything please correct me. thanks

Onemanzu · December 15th, 2008, 01:44 AM

drain all the coolant and see how bad it is.

you are right on with all the potential problems but with out much knowledge your guess is as good, if not better then mine. good luck, keep us posted.

Nitrous Injected · December 15th, 2008, 01:56 AM

yea man , dran your coolant and your oil as well. If you have kind of a milky oil then there is coolant in the oil...you hole oil in the coolant??? never seen that before, but keep me posted i might learn somthing?

stephen · December 15th, 2008, 08:01 AM

Oil in the coolant is a bad sign. Yes it could be a head gasket, lower intake manifold gasket, or front cover gasket. Did it overheat when the hose blew? If so it's likely a head gasket.

1FUN4RD · December 15th, 2008, 08:11 AM

I say cracked head or block.

efulton95 · December 15th, 2008, 09:00 AM

there is oil in the coolant but no coolant in the oil. and we drained the coolant and there was maybe a 1/4 of a quart of oil if that. unfortunatly i dont think we will know until we tear it down.

and yes it did over heat when the hose blew. we are starting to lean tward the heads but arnt sure yet.

stephen · December 15th, 2008, 10:32 AM

I'm not sure if 96 had the multilayer steel (MLS) head gaskets. The gaskets that were used in the earlier V6 engine had problems. Since it overheated it is almost certainly a head gasket. While the heads are out have them checked for cracks and surfaced. Also check the mating block gasket surface for straightness. The MLS gaskets require a very smooth surface to seal. The machinist should know about that.

stephen · December 15th, 2008, 10:46 AM

It would be a good idea to also replace the timing cover gasket as well.

December 15th, 2008, 12:37 AM	#1
efulton95 Regular 1995 Mustang GT slower than a 3 leg dog Join Date: Oct 2007 Location: Detroit Posts: 165 iTrader: 0 reviews	oil in coolant my friend has a 96 v6 and we think he might have blown a head gasket but arnt possitive. There was clearley a blown hose but the thing we are confused about it there is oil in the coolant resivoir. the hose that blew was a coolant hose not oil. I have heard it could be any of the following, head gasket, intake gasket, or timing cover seal, does anybody have an idea? We put a new hose on it and there doesnt seem to be any major leaks but the oil in the coolant makes me think something had to break internally. any input would be appriciated and if i was wrong about anything please correct me. thanks

December 15th, 2008, 01:44 AM	#2
Onemanzu ¡ʇsnq ɹo uʍop ǝpısdn Join Date: Oct 2006 Location: Looking for free hand jobs in poland springs nebraska... silly gooses Posts: 12,551 Blog Entries: 1 iTrader: 0 reviews	drain all the coolant and see how bad it is. you are right on with all the potential problems but with out much knowledge your guess is as good, if not better then mine. good luck, keep us posted. __________________ My Foz

December 15th, 2008, 01:56 AM	#3
Nitrous Injected Regular 2003 Mustang GT 13.987@100.98 MPH Join Date: Oct 2008 Location: Mt. pleasant Posts: 107 iTrader: 0 reviews	yea man , dran your coolant and your oil as well. If you have kind of a milky oil then there is coolant in the oil...you hole oil in the coolant??? never seen that before, but keep me posted i might learn somthing? __________________ 88 NOTCH,351 WINDSER,BUILT C6 TRANY,750 CFM CARB,4:30 GEAR=??? WWIII 2003 MUSTANG GT SOLD with 488 RWHP and 520 FT-LB on 150 shot and bolt ons R.I.P.

December 15th, 2008, 08:11 AM	#5
1FUN4RD MMs Ford Racing Nut Swinger 2007 MUSTANG GT Join Date: Feb 2008 Location: CENTRAL IOWA Posts: 4,367 iTrader: 3 reviews	I say cracked head or block. __________________ www.1fun4rd.blogspot.com

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December 15th, 2008, 08:01 AM	#4
stephen Hardcore Enthusiast Join Date: Feb 2007 Posts: 1,262 iTrader: 0 reviews	Oil in the coolant is a bad sign. Yes it could be a head gasket, lower intake manifold gasket, or front cover gasket. Did it overheat when the hose blew? If so it's likely a head gasket.

December 15th, 2008, 09:00 AM	#6
efulton95 Regular 1995 Mustang GT slower than a 3 leg dog Join Date: Oct 2007 Location: Detroit Posts: 165 iTrader: 0 reviews	there is oil in the coolant but no coolant in the oil. and we drained the coolant and there was maybe a 1/4 of a quart of oil if that. unfortunatly i dont think we will know until we tear it down. and yes it did over heat when the hose blew. we are starting to lean tward the heads but arnt sure yet.

December 15th, 2008, 10:32 AM	#7
stephen Hardcore Enthusiast Join Date: Feb 2007 Posts: 1,262 iTrader: 0 reviews	I'm not sure if 96 had the multilayer steel (MLS) head gaskets. The gaskets that were used in the earlier V6 engine had problems. Since it overheated it is almost certainly a head gasket. While the heads are out have them checked for cracks and surfaced. Also check the mating block gasket surface for straightness. The MLS gaskets require a very smooth surface to seal. The machinist should know about that.

December 15th, 2008, 10:46 AM	#8
stephen Hardcore Enthusiast Join Date: Feb 2007 Posts: 1,262 iTrader: 0 reviews	It would be a good idea to also replace the timing cover gasket as well.

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