![]() Then: '99 Toyota Avalon XL | 200hp 1MZ-FE 3.0 V6 | Diamond White | 189k | Sold: July 2015 Then: '07 Ford Fusion SEL | 221hp Gen I VVT Duratec 3.0 V6 | Tungsten Silver | 150k Now: '03 Honda CR-V AWD | Slow 4-Cylinder | Dirt | 180k Now: '15 Toyota Prius III | 134 hp 2ZR-FXE | Silver | 36k I have not seen anyone run green glycol with them and check gaskets. To date the aluminum framed gaskets have proven to look new when removed at 30-40K miles with DexCool, An圜olor and Presone LL coolants. Apparently many different production factors can cause the same results he found w/o ever being introduced to acids etc. The safest and best advice that can be offered is to use the latest aluminum frame gasket. is considered inconclusive by folks in the plastic mold injection industry. While not doing any close analysis myself and later learning that the microsope testing done by Bill W. Prestone LL has caused the same issue with Fel Pro gasketsĪn圜olor has caused the same issue with Fel Pro gaskets. Green glycol has caused the same issue with Fel Pro gaskets It has been found that green glycol in many 95's caused the same issue with factory gaskets. How much could it pull though? Then if that same area had a leak that could pull oil in, why wouldn't coolant under 16psi of pressure push into the oil? It seems possible that when the system was cold the coolant passage could pull in some oil. This does assume a warm and running motor though. In the heads and valve cover area, even at the LIM gasket there is no pressure on the oil side of things, there is about 16psi of coolant pressure. So, I am thinking, LIM gaskets - this time aluminum.ĭoes this seem like the correct diagnosis? Am I missing anything?īill B, I would still have some concerns in your situation. Only "mixes with any" coolant in it since I got it. Aluminum frame LIM gaskets were not available at the time, so Fel-Pro nylon frame gaskets were installed. At that time, I replaced the head gaskets and the LIM gaskets. When I got this car a few years ago, I pulled the engine and removed the heads while replacing the main and rod bearings. Did not see any coolant in the oil, but will have it analyzed just to make sure. I just changed the oil the other day and took a sample. So, I figured the oil must be coming from the engine. The level in the trans was low-normal and the stick looked like this: So I checked the trans fluid for the presence of coolant. It looks like motor oil, smells like motor oil, and feels like motor oil, but I thought maybe it is transmission fluid. When I opened it up and looked inside, here is what I saw: Always protect yourself with safety glasses and gloves when working with the coolant on your Grand Caravan.Finally got a chance to work on my own car the other day, and while changing out the long leaking valve cover gaskets, I noticed the coolant level in the expansion tank was about 2 inches lower than normal. An anti-freeze leak can cause the temp sensor to record high engine temperatures in a 1998 Dodge Grand Caravan. If you ignore a small coolant leak long enough, you will run out of coolant, which leads to an overheated engine and other serious, but highly avoidable, problems. This video shows you where the coolant reservoir, hoses and connections on your 1998 Grand Caravan Base are located and the steps needed to fix minor leaks.Ī few things to note about coolant is that it is sweet tasting and highly toxic, so it can end up in the dog's stomach pretty quickly. Otherwise, your Grand Caravan may have a radiator leak. However, a coolant leak (aka an antifreeze leak) is most likely to occur where the hoses connect to the engine or radiator. Coolant / antifreeze can leak from the reservoir, radiator or any hose, in 1998 Grand Caravan with the 3.8 liter engine. Engine coolant (which is also called antifreeze or anti-freeze) moves through the inside of your Grand Caravan engine and keeps it from overheating. Leaking coolant / antifreeze is one of the more common types of leaking fluid from Grand Caravan engines. Follow the steps in this video to see how to fix minor coolant (antifreeze) leaks in your 1998 Dodge Grand Caravan.
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