My 98 Jeep Cherokee started running very running rough it idols very rough also and as I was driving my check engine light would flash and then stop flashing it also started to smell like hot Anti Freeze any solutions ?
The check engine light is because all check engine light codes are caused by components that affect emissions. It's not actually an engine problem, it's a problem with either your O2 sensor, MAF sensor, fuel/air ratio, pyrometer, or exhaust.
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gm diagnostic tools
SOURCE: 1999 jeep cherokee se 2.5 / 4 cyl / 4x4 flashing oil light
If the engine is not making any ticking noises while light is on, it's likely that the oil pressure sending unit is going bad. Generally, it's located near the oil filter, but every time I tell someone a location, I'm wrong. (can't remember everything) It's not hard to find and anyone at a decent parts house can point it out to you.
good luck also check that the wire going to it is not chafed and shorting to block!
SOURCE: Check Engine light flashes and car vibrates
The only scenario I am familiar with that causes a blinking or flashing Check Engine Light is misfires. Your description of the car shaking is another sign of possible misfires as well. There could be other issues, it would be helpful to know what codes are getting set. However, with the flashing check engine light and the shaking of the car the first thing I would do, if it hasnt been done in a while, is a tune up. Replace the plugs to start. I believe you have a distributorless ignition meaning that you have coil packs instead of a distributor.
Your coil pack sits on top of the plugs. Look to the left side of the engine, just at the bottom of the valve cover and you will see (assuming you have the 4.0L 6-cylinder engine) a series of three humps. Those three humps is your coil packs and there should be four bolts that hold it in. Take out those four bolts, pry up the coil pack and then you will have access to replace the spark plugs.
While your at it, Id replace the fuel filter, air filter and other general maintenance/tune up items like that.
SOURCE: 2001 Jeep Cherokee Sport - check engine
warped heads will cause this...if it over heated badly thats going to be the problem
SOURCE: my 94 jeep grand cherokee stop running while
try your cranckshaft sensor and wires first if not it could be your computer
SOURCE: 1999 Jeep Cherokee Sport 4.0L engine. Oil
I'm assuming the engine is still running and no engine noise has occured due to loss of oil pressure, and it is just the gauge that is not reading? If so, the oil pressure switch that is located on the camshaft sensor, could have a bad connection or the oil sensor will need to be replaced. The oil sensor is located on the left side of the engine and is mounting horizontally on the camshaft sensor housing.
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