1998 mustang gt coolant leak help - Mustang Evolution

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Old 08-01-2016, 07:42 PM   #1
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1998 mustang gt coolant leak help

ve developed a coolant leak I can see it going down the header and driping off the cats. I'm guessing it's a cracked intake manifold. I filled the resevoir a week ago and the low coolant light came on today and sure enough it was low. What do you guys think? Also can you still drive with s cracked intake manifold if you keep the coolant level up?
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Old 08-01-2016, 07:49 PM   #2
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Yes. But you should be making plans to repair the leak ASAP. It will only get worse, and it could potentially drain the cooling system in almost the blink of an eye, leaving you stranded somewhere.
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Old 08-01-2016, 08:57 PM   #3
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Could it be that the radiator was low so when I added coolant to the reserve it bubbled down and made the reserve low again?
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Old 08-01-2016, 09:23 PM   #4
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That is entirely possible. You should "burp" the cooling system by squeezing the upper radiator hose to remove the trapped air.

But if you can see coolant dripping from underneath the car, you definitely have a leak somewhere. Whether it is the intake manifold, or possibly a heater hose, you need to find the source of the leak and repair it before it turns into a larger problem.
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Old 08-01-2016, 09:30 PM   #5
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I checked for leaks and couldn't find any. Oil isn't milky either.
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Old 08-01-2016, 09:32 PM   #6
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The leak was cause I had my ac on. I feel stupid about that part but that leaves me even more confused to where this coolant is going
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Old 08-01-2016, 09:40 PM   #7
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Just fill it all of the way to the line, and try to burp the air out. Then just keep an eye on the coolant level for a while and see what it does.

Just out of curiosity, how does your oil look? Is it pretty clean on the dipstick, and doesn't look contaminated or anything?
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Old 08-02-2016, 02:17 AM   #8
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Oil is clean and not milky. And if my level drop again what could it possibly be?
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Old 08-02-2016, 03:18 AM   #9
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If I have a blown head gasket wouldn't it make the oil milky or I would smell it?
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Old 08-02-2016, 08:29 AM   #10
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If it is a blown head gasket, you would have milky oil, or the coolant might not be getting in the oil, but could possibly be entering the combustion chamber. If it is entering directly into the combustion chamber, the oil will be clean but there will be a lot of white smoke coming out the exhaust. Also, a bad intake manifold gasket could cause coolant to enter directly into the combustion chamber.
You will need to monitor it for a few days and see if the coolant level keeps dropping.
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Old 08-02-2016, 09:02 AM   #11
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Yeah. Last time I added coolant I only added to the reserve. Today I'll top off the reserve and radiator cause then if it's low it's going somewhere. I have no white smoke though. Maybe I'm just overlooking an external leak. Maybe under the intake manifold.
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Old 08-02-2016, 11:52 AM   #12
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Just a quick note, make sure it's note your heater core. See if the passenger side carpet is wet. More than likely not, but it's a check off the list.. Good luck, I hate screwing with coolant problems, they're such a *****g nightmare !
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Old 08-02-2016, 03:33 PM   #13
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Okay here's an update. I found the leak it's under the intake manifold. The only problem is im 19 so 200 bucks for a new intake is to much for me right now lol. Does the bars radiator and manifold stop leak work
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Old 08-02-2016, 04:32 PM   #14
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I don't think it's going to help you need an intake and the 200 $ one is crap save up and buy the frpp one

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Old 08-02-2016, 04:34 PM   #15
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And more than likely it's leaking from the thermostat housing it's leaving coolant in the valley under the intake right?

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Old 08-02-2016, 05:04 PM   #16
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Yeah it's leaking under the intake onto the little valley on top of the block
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Old 08-02-2016, 09:46 PM   #17
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It's you thermostat housing have to replace the intake

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Old 08-02-2016, 09:48 PM   #18
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Over time it gets warped there so replacement is the only way to go

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Old 08-03-2016, 03:21 AM   #19
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Over time it gets warped there so replacement is the only way to go

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Is it good to drive on for 2,000 more miles if I watch my coolant levels. I don't really have the money to fix it right now. It's my fun summer car but I need money to do house repairs.
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Old 08-03-2016, 05:04 AM   #20
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Keep a close eye on it don't run her hard it should be fine but it will get worse

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Old 08-03-2016, 08:12 AM   #21
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Keep a close eye on it don't run her hard it should be fine but it will get worse

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Mechanic I go to said to add bars stop leak for a cheap fix that might work till next spring other than that to just watch my coolant levels
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Old 08-03-2016, 03:35 PM   #22
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Well at the end of the day it's your vehicle but I tell you I would never put it in my car I would fix it and not try a bandaid that probably won't stop the leak when it gets warped by the thermostat housing it's a pretty big gap there just letting you know.

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Old 08-03-2016, 11:29 PM   #23
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Keep a close eye on it don't run her hard it should be fine but it will get worse

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Baby that that engine and treat it like it is the most precious hunk of metal on earth. Check the coolant, keep an eye on the temp gauge, and keep your foot out of the throttle.

With a lot of cautious attention to detail you should be able to get the mileage you need out of the car until you can afford a new manifold.

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Old 08-03-2016, 11:47 PM   #24
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Mechanic I go to said to add bars stop leak for a cheap fix that might work till next spring other than that to just watch my coolant levels
You need to avoid that mechanic. I'm not being a jerk, but that particular mechanic is setting you up for a much larger problem. I am not saying this is being done on purpose. In fact, the Bars Leak products are used more than I want to imagine. Typically cars going to the action, vehicles found on "buy here, pay here" lots, and junk people are trying to unknowingly unload onto someone else has the snake oil band aid flowing through it.

The mechanic more than likely have you the advice he did because it "MIGHT" be a cheap temporary fix that could help you short term. It is a kind gesture, but careless.

Consider what a coolant stop leak product is doing? As the mixture makes its way through to the damaged area, it comes in contact with a lot of very critical components and areas. The stop leak does not know what or where a leak is, it just flows in the system with the hope of clogging up the existing problem. There is a greater potential of causing damage than shoppi,g or delaying further complications.

What can a coolant stop leak affect? The thermostat, water pump, temp sensors, water ports throughout the block and head, radiator, heater core, etc. If coolant flows through a part with stop leak, that part is being introduced to the shop leak.

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Old 08-04-2016, 01:42 PM   #25
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I'd find a new mechanic...

And don't buy the cheapo intake, realistically the only option is the frpp manifold. This is not something you want to put a bandaid on that will cost you more money down the road, most likely sooner than later.

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Old 08-04-2016, 01:48 PM   #26
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The only way I would buy the reasonably priced manifold would be to use temporarily. The only downside is that you could get one that is in the same shape as what you have now.

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Old 08-06-2016, 01:04 PM   #27
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Baby that that engine and treat it like it is the most precious hunk of metal on earth. Check the coolant, keep an eye on the temp gauge, and keep your foot out of the throttle.

With a lot of cautious attention to detail you should be able to get the mileage you need out of the car until you can afford a new manifold.
OP, while you're babying it trying to get more miles out of it while it's leaking, maybe keep an eye out for someone selling a used FRPP intake manifold. Never know, might get lucky and find one for cheap enough so you won't have to wait too long.
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Old 08-06-2016, 01:35 PM   #28
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OP, while you're babying it trying to get more miles out of it while it's leaking, maybe keep an eye out for someone selling a used FRPP intake manifold. Never know, might get lucky and find one for cheap enough so you won't have to wait too long.
A great suggestion.

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