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#2383575 - 10/05/11 02:46 PM OIL is MIXING WITH Coolant head gasket or Tstat ?
MNJosh Offline
Member

Registered: 05/07/04
Posts: 202
Loc: MInnesota, Twincities
I have a 2005 Police interceptor at first it made a loud knocking noise then I stuck in some oil and seafoam in the gas tank and now it makes not that loud of a noise now. but still a noise. not a knocking sound, it would smoke over heat after 2 minutes of having it on. under the car was leaking coolant with oil mix, a sludge type its a 2005 they do not have those intakes that where on the 01-98. so I am ether thinking head gasket or T stat. the car does produce alot of smoke when I drive it down the block, just to test it. other wise its been garaged and is my only transportation, the smoke is white but I don't remember how white. I heard head gaskets go out if white smoke comes out, I think its the oil mixed with the coolant causing the smoke. ? any ideas ?
_________________________
2009 Black CVPI no mods.


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#2383654 - 10/05/11 05:57 PM Re: OIL is MIXING WITH Coolant head gasket or Tstat ? [Re: MNJosh]
98VicP71 Offline
14.6@93MPH
Grand Poobah

Registered: 03/28/06
Posts: 12731
Loc: ATL
There are only a couple places you can get coolant into the oil..

1. Leaking head gasket
2. cracked head
3. leaking intake gasket at the water jacket
4. cracked cylinder wall
5. Leaking oil filter adapter gasket

the most common would be a bad head gasket or oil filter adapter gasket.

DO NOT DRIVE OR RUN IT WITH WATER IN THE OIL!!!!

if it was knocking it may already be to late and you could have a spun bearing..

at this point I would almost say just try to find a good low mileage repacement motor and swap out the long block..
_________________________
1993 Lincoln Town Car 150k+ - RIP 5/10/2011
1998 Ford Crown Victoria P71 - RIP 12/25/2006
2001 Ford Crown Victoria P71(Count blackula) 180k+ - Ummmmmm evil

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#2383713 - 10/05/11 07:47 PM Re: OIL is MIXING WITH Coolant head gasket or Tstat ? [Re: MNJosh]
m_j Offline
Member

Registered: 11/06/07
Posts: 216
Loc: BC Canada
Quote:

3. leaking intake gasket at the water jacket


iirc this is not a possible route into the crankcase on a 4.6
_________________________
2004 p71 ex RCMP- it is a beater
tr3650 from 2005 mustang
hydraulic clutch (using ford truck master, mustang slave) fabbed pedal assembly
tuned using Delta Force by http://www.dirtydirtyracing.com/ through email smile great customer service
aeromotive 11142 fuel pump

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#2383719 - 10/05/11 07:56 PM Re: OIL is MIXING WITH Coolant head gasket or Tstat ? [Re: MNJosh]
kdr358 Offline
Member

Registered: 11/26/10
Posts: 338
Loc: Elmhurst IL
At this point it sounds like the damage has been done. It sounds like the motor is on borrowed time. I would start saving for a new or low mileage engine or re-build.
_________________________
2003 Black Ex Erie County OH Sheriffs car. 135k With all Maintenance Records! Sold 11/19/11

2003 B&W Ex Westmont IL K-9 unit 95k, U-Haul trans pan, POR-15 undercoat

1987 GMC R3500 Dually, 3+3 Sequoia Camper Special 102k

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#2383748 - 10/05/11 08:33 PM Re: OIL is MIXING WITH Coolant head gasket or Tstat ? [Re: MNJosh]
QuicksterP71 Offline
Over the Hill

Registered: 02/05/11
Posts: 2114
Loc: Ma.
i would say it is time for a new motor
_________________________

1997 Crown Vic P71 95.000 miles Formerly Mass Correctional Vehicle, Buying a new Vic one part at a time. Ported and polished plenum, 70mm throttle body, Remote starter, Body Work and New Paint Job, 35% window tint, HPP Wheels off a 96, Pioneer deh-1100mp, Pioneer TS-A6882R 6*8, Pioneer Premier TS-A933P 6*9

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#2383754 - 10/05/11 08:39 PM Re: OIL is MIXING WITH Coolant head gasket or Tstat ? [Re: MNJosh]
NGreen0807 Offline
Over the Hill

Registered: 08/17/09
Posts: 2700
Loc: Rock Hill, NY
If worst comes to worst a new motor can be purchased relatively cheap.

I paid $800 for a 2003 MGM PI motor with 60k and a 3 year warranty with unlimited milage.
_________________________
-Nick

1999 CVPI. TR3650, tiny turbo, Ect.
2004 LX

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#2383767 - 10/05/11 09:04 PM Re: OIL is MIXING WITH Coolant head gasket or Tstat ? [Re: MNJosh]
SicVic1 Offline
Member

Registered: 03/07/05
Posts: 316
Loc: West Palm Beach ,Fl.
There are freeze plugs behind the timing cover that will go bad and cause all the syptoms you are having too. Grab a pressure tester and see if you lose pressure in your cooling system. pop the oil fill cap and see if you hear any hissing as pressure drops. Also if it does do so, drain the oil and see how it comes out. It may be water and then oil not necessarily mixed. I have seen it a few times and 4 hours later and a few freeze plugs all was back to normal.

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#2383786 - 10/05/11 09:30 PM Re: OIL is MIXING WITH Coolant head gasket or Tstat ? [Re: SicVic1]
GrandMarq9807 Offline
Over the Hill

Registered: 05/10/10
Posts: 2943
Loc: Virginia
Originally Posted By: SicVic1
There are freeze plugs behind the timing cover that will go bad and cause all the syptoms you are having too.


Yup, if the cooling system has been neglected they are defiantly a suspect, piss poor design IMHO...
_________________________
1998 Grand Marquis LS. 61K mi.
2007 Grand Marquis GS. 61K mi.
1996 F-150 XLT 5.0 E4OD 179K mi
1988 Turbocoupe 331 AOD
1972 Comet GT 306 C4
1969 Fairlane Cobra 428CJ 4-Speed


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#2383792 - 10/05/11 09:42 PM Re: OIL is MIXING WITH Coolant head gasket or Tstat ? [Re: MNJosh]
NGreen0807 Offline
Over the Hill

Registered: 08/17/09
Posts: 2700
Loc: Rock Hill, NY
I never even thought of that... Great info!
_________________________
-Nick

1999 CVPI. TR3650, tiny turbo, Ect.
2004 LX

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#2383804 - 10/05/11 09:56 PM Re: OIL is MIXING WITH Coolant head gasket or Tstat ? [Re: MNJosh]
Bangster Offline

Poobah

Registered: 11/30/01
Posts: 6544
Loc: Tucson Az
Also oil cooler since it is a P71.
_________________________
00 Grand Marquis LS Premium - 97 Cougar 4.6 Sport - 89 Cougar LS - 63 Falcon 302 - 82 F-150 -
1974 Honda cb400

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#2383805 - 10/05/11 10:00 PM Re: OIL is MIXING WITH Coolant head gasket or Tstat ? [Re: MNJosh]
m_j Offline
Member

Registered: 11/06/07
Posts: 216
Loc: BC Canada
coolant eats bearing material, do not run it with coolant in the oil
_________________________
2004 p71 ex RCMP- it is a beater
tr3650 from 2005 mustang
hydraulic clutch (using ford truck master, mustang slave) fabbed pedal assembly
tuned using Delta Force by http://www.dirtydirtyracing.com/ through email smile great customer service
aeromotive 11142 fuel pump

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#2383816 - 10/05/11 10:15 PM Re: OIL is MIXING WITH Coolant head gasket or Tstat ? [Re: m_j]
PHoganDive Offline
Over the Hill

Registered: 06/11/11
Posts: 1520
Loc: Mass, USA
Originally Posted By: m_j
coolant eats bearing material, do not run it with coolant in the oil


The coolant doesn't eat the bearing material, it just doesn't lubricate the bearing, so it starts self destructing from lack of lube.
_________________________

2006 CVPI w/120K, J-Mod, BOC Tune, Magnaflow Catback Duals, headlight relay harness installed w/ 80/100 watt bulbs, HUGE difference...:)

1996 GMQ 116K miles, Bilstein shocks, otherwise stock (Retired 7/2011)

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#2383965 - 10/06/11 08:30 AM Re: OIL is MIXING WITH Coolant head gasket or Tstat ? [Re: m_j]
98VicP71 Offline
14.6@93MPH
Grand Poobah

Registered: 03/28/06
Posts: 12731
Loc: ATL
Originally Posted By: m_j
Quote:

3. leaking intake gasket at the water jacket


iirc this is not a possible route into the crankcase on a 4.6



It is possible just very unlikely was just brain storming.

If the intake gasket is leaking between the water jackets and one of the intake runners the coolant can get into the runner down into the head and combustion chamber then with the force of compression forced past the rings and into the oil pan..

VERY unlikey as you would really need to have a failed seal at the water port, another failed seal at the intake runner, and bad rings. Plus you would def see white smoke out the tail pipes.
_________________________
1993 Lincoln Town Car 150k+ - RIP 5/10/2011
1998 Ford Crown Victoria P71 - RIP 12/25/2006
2001 Ford Crown Victoria P71(Count blackula) 180k+ - Ummmmmm evil

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#2384338 - 10/06/11 08:24 PM Re: OIL is MIXING WITH Coolant head gasket or Tstat ? [Re: PHoganDive]
m_j Offline
Member

Registered: 11/06/07
Posts: 216
Loc: BC Canada
Originally Posted By: PHoganDive
Originally Posted By: m_j
coolant eats bearing material, do not run it with coolant in the oil


The coolant doesn't eat the bearing material, it just doesn't lubricate the bearing, so it starts self destructing from lack of lube.


Quote:
Acid Formation and Bearing Damage
Under normal operating conditions, ethylene glycol oxidizes to form organic acids such as glycolic acid, oxalic acid, formic acid and carbonic acid. Typically the reaction rate doubles for each 18F (8C) in temperature. These acids contribute to secondary and tertiary effects as further described. However, their presence alone in lubricating oil can jeopardize bearings and other frictional surfaces. The corrosive conditions can pit the clad surfaces of the lead/tin overlay of journal bearings, promote rust on steel and iron surfaces, and tarnish cupric metals of bronze and brass. One study found that even a small coolant leak in a large integral gas engine/compressor was enough to severely corrode engine steel and copper surfaces.
_________________________
2004 p71 ex RCMP- it is a beater
tr3650 from 2005 mustang
hydraulic clutch (using ford truck master, mustang slave) fabbed pedal assembly
tuned using Delta Force by http://www.dirtydirtyracing.com/ through email smile great customer service
aeromotive 11142 fuel pump

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#2384354 - 10/06/11 08:38 PM Re: OIL is MIXING WITH Coolant head gasket or Tstat ? [Re: 98VicP71]
MNJosh Offline
Member

Registered: 05/07/04
Posts: 202
Loc: MInnesota, Twincities
no I never stuck Oil in the gas tank I said I put seafoam in it the knocking is not loud as it was but still knocks not like it did when it was making a pinging sounding like the lifter was going out. I read up on the oil cooler. the oil comes to one side and antifreeze the other I wounder if there mixing there. I don't get these 05 engines there different. there not like the 01s I even seen 07s look different. was told only a 04 or 05 will work for the car. do not know why the 03s guess they are made different. I was told even the 04 would need some 05 parts they said 05 was a hybrid year half analog half drive by wire. the engine was controlled by a digital interface that is why I can put the pedal down a little and it responds quick, it just had analog gauges.
if the lifter does not make as loud noise it did. it probably went out as for a hole being made where the antifreeze comes in from it did make a noise when I thought it was just then oil when I speeder up the car that's when it knocked bad.
I know where to get engines for 800 to 300 then it takes 600 to install I did this twice one on a 99 CVPI and this 05 last year the intake manifold plastic part was cut apart broken off where a hose with coolant goes. it sprayed coolant all over and in the spark plug wells. then I had a motor put in I think I was scammed that motor I bought had 80k the mechanic would not give me the motor recpit. I think he just switched the oil valve covers that had markings and the plastic thing in the middle along with the new intake but did not stick the engine in it. and cleared out the coolant from the spark plug wells cause the engine came with everything even oil cooler. think I was ripped off that means my car has a 188000 motor in there.I paid him to 02 sensors he never did, I tried calling he never answered. I even said I would sue him then he called had me drive to middle nowhere he said he moved his garage. that is the history of the car it ran like cause the 2 02s out. then now this, anyone else think he did not put the 80k engine in with everything
_________________________
2009 Black CVPI no mods.


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