This is really bad news and depending how far gone it is, worst case scenario it means damaged bearings and a complete engine redo.īurning coolant emits a terrible smell and can be detected immediately.Ĭheck for traces around the head gasket for obvious leaks.īubbles in the radiator once engine reaches operating temperature If the oil looks milky white, you definitely have coolant mixing in oil. That is the most obvious method, however you shouldn’t always wait too long to notice a considerable drop.Ĭheck your oil. You can tell by the level of coolant constantly dropping. There are a few ways to check and they are 1. A reputable garage should be able to detect coolant leaks within a few minutes. We touched briefly on coolant leaks earlier, and trouble-shooting for coolant leaks is one of the easiest things to do. CAT (catalytic converters) are also designed to trap a lot of the toxic exhaust fumes and convert it to vapor that is less dangerous to the environment. It shouldn’t linger too long after driving and dissipates relatively quickly. It’s the direct result of normal condensation building up inside the exhaust system. The steam and white smoke short lessen after a few minutes of driving. Condensation burn-off occurs when the hot exhaust fumes is exposed to extremely cold ambient temperatures outside. You need to determine the density, since a thicker white smoke that isn’t consistent at startup but always after standing a few hours, then it’s more likely to be coolant mixing into the combustion chamber and burning up.Ĭondensation is a very regular occurrence in colder climates and nothing to be alarmed about. If you only notice a puff of white smoke for a second or two on cold start, then it’s most likely condensation burn-off. Let’s look at the fuel condensation burn-off as a possible causes. Oil and antifreeze have very distinct smells and are signs of a serious leaks which could result in catastrophic engine failure in not attended to immediately. In either case, you have a serious problem on your hands. One identifying sign that it’s either a serious problem or nothing to really be concerned about is if the smoke being emitted from your Jeep is thin and only lasts a short while and disappears without repeating or, If the smoke lingers and happens each time on startup with a distinct smell like antifreeze or oil burning. Bad Modulator Valve on the Transmission.Let’s look at each possibility in more detail Once we’ve achieved the above, we can move to the next phase by determining the possible cause and a solution. Does it smoke constantly or only at startup.Identify the smoke density (Thick/Thin).Identify the color of the smoke (Blue/White).In order to accurately diagnose the problem, we first need to identify a few signs which either isolates a very specific component or eliminate other possibilities, and we go about this by identifying the following: Coolant leak into the combustion chamber.
Your Jeep Wrangler can smoke on startup for multiple reason such as: Has your Jeep stated smoking recently causing you much anxiety? Are you smelling anything strange like a sharp water vaporized smell in the exhaust fumes? Have you noticed a puff of smoke bellowing from your exhaust a second after you start up your Wrangler? Does it happen intermittently or is it smoking consistently? If your Wrangler is displaying any of the mentioned symptoms, then you might find the solution in this article.
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