04 Coolant Leak - Mis firing

[bakocobra]

Hi Guys -

I got my 04 cobra about 3 months ago. i noticed a coolant leak the other day so I opened the hood and found coolant puddled around the reservoir cap and down around the battery, then leaking down below into the suspension etc. on the drivers side. I replaced the cap with the new one thinking it might be a bad cap. no luck. still leaking and I also noticed what i thought was a mis fire under moderate load. So I quickly got it home and parked. Water temp was normal the whole drive. dont know what to make of this. Anyone have any help? head gasket? i sure hope not.

 

[03cobra#694]

I`d start by first checking the plugs.

 

[Nutty 5.0]

Also many tanks and caps are known to leak too fwiw.

 

[Furinox]

air pocket in cooling system, blown headgasket allowing compression into cooling system, or warped head allowing compression into cooling system.

 

[bakocobra]

air pocket in cooling system, blown headgasket allowing compression into cooling system, or warped head allowing compression into cooling system.

If Im not noticing a change in performance or temp, would it more likely be an airpocket in the cooling system?

 

[76mmsaleen]

if it was an air pocket, it would run hot real quick....has to be a cracked head gasket..in B/W the cylender and the water jacket...it has happened to me before..

 

[jm@ReischePerf]

Car may be overheating

1. Is the radiator fan working? 2. Bad thermostat? 3. Intercooler pump working?

Refill procedure to get rid of air in the system: Cobra, Mach 1, Ford 4.6L DOHC Coolant Refill & Burp Procedure by Reische Performance Products

 

[bakocobra]

if it was an air pocket, it would run hot real quick....has to be a cracked head gasket..in B/W the cylender and the water jacket...it has happened to me before..

When I drove it last, it did not warm up any quicker than in the past. It then ran at normal temp for the duration of the drive. I could smell the coolant 3-5 minutes into the drive. Is this going to be a major project to replace? I dont have the time to do the work anyway so its going to a reputable shop. Can I expect my car to make a full recovery? Im really disappointed as I havent had it but a few months.