To understand the symptoms it can be helpful to understand why a head gasket might fail. Now that we understand what a head gasket it, it’s important to learn what head gasket failure symptoms look like to avoid higher expenses due to additional engine damage caused by driving with a blown head gasket. The head gasket also keeps coolant and oil out of the combustion chamber which is important for the same reasons you wouldn’t want coolant or oil leaking anywhere else. The head gasket is so important because it seals the combustion chamber allowing your car to build the proper compression and contain exhaust gases both of which aid in maintaining the efficiency of your engine. Every modern car has this gasket but they vary in their thickness and construction based on the manufacturer’s design of the engine. The head gasket lives between your engine block and cylinder head. Let’s start by talking about what a head gasket is.
If you happen to own one of these vehicles, don’t worry it does not mean that you have a bad car or that you are going to spend lots of money. One such vehicle has such a bad reputation for head gasket problems there is a group of owners trying to get the manufacturer to have a recall on them. Did you see bubbles after your drive?Īnd yeah a bad VSS causes the speedo to not work.There are some makes or models of cars that have a reputation for blowing head gaskets. They kick on to maintain a safe coolant temp. The fans kicking on does not mean its getting too warm. not a great feeling right now and actually really stressed out about this car now. Apparently the miles stop going up when the speedo is out? So i could have bought a car with 180k miles but it says 116k on the odomoter. Could tha have something to do with the CEL?ĮDIT: WOW, i just researched the speedo and its a common problem with the 99's. I probably only drove 5-8 miles and i did not beat on it or drive it hard like you said because it needs some TLC (oil change trans flush, diff fluid change) and i want to do those things before i drive it hard or try to overheat it for diagnostic reasons.Īlso the previous owner said sometimes the speedometer stops working and i never noticed it until this drive ( only driven it 3 times since i registered it a week ago). On my way to the store the Check engine light came on and that was that. ( should i have waited till the fan kicked on before i plugged the whole? Almost like an indicator the car is now above temp so fan comes on.) so then i just got in and drove off. So i plugged the purge hole and not 30 seconds later the fan kicked on. Well after waiting that 20 minutes i was satisfied. I didnt really notice any bubbles per-say buy i did noticed a little whirling and waving in there, it could have been bubbles. Then i completely removed the purge plug, started the engine, and let it run for about 20 minutes untill it came up to temp.
#98 subaru coolant pushed into overflow full
Then i check the coolant level its right at full mark on bottle. they overheat when a lot of the coolant gets pushed out of the rad and into the overflow if it is more than a little too full, you need head gaskets. then pop the hood and check the overflow bottle.
also smell the overflow, if it reeks like raw exhaust, that is a giveaway.įire it up, let it get warm, drive it pretty hard for 10 miles. the car will not overheat in just 5 miles if they aren't THAT bad yet, usually it takes 10-30 miles, sometimes more. once the car is hot and there arent any bubbles coming out of that hole, put the plug back in. take the bleeder screw out of the top of the rad on the passenger side, make sure the rad is full and let the car come up to temp with that removed. Make sure the overflow is topped off to where it needs to be as well.įirst step is to make sure the cooling system is bled properly. Next morning you go out, open the cap and make sure that the radiator is completely full. Make sure the entire system is purged of air. Even if the car isn't overheating yet, another good sign is that the gaskets are leaking is that general warm time for the engine (how long it takes to get to full operating temp from a cold start) will shorten.Īlso, another reason that there could be air bubble in the reservoir is if there is an air pocket in the cooling system. Making sure everything else is up to par and keep an eye on it. Like Steven has said, I wouldn't worry about it just yet. Contamination of the overflow bottle is a sure sign, Steven. Drive it and keep your beady eyeballs on the situation. What brand of thermostat do you have? An OEM with the bypass ball would be my first choice. A quality Stat or Oem would be my first choice. Before I would freakout, make sure that the radiator cap is up to snuff.
0 kommentar(er)
