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I have a 99 Jeep Cherokee. The check gauges light came on because my battery gauge had dropped to 9. wrong?
Nothing seems to be going wrong yet other than the annoying check guages light and the battery reading only 9. should i be concerned and how do i fix it?
Best Answer - Chosen by Voters
Probably had the alternator go out. Take it to a local parts shop and check the charging system. Or If you have a multi meter, Check the battery voltage off, and then start it, check again, It should be between 12-12.8v off, and 13-13.75 running. If it drops once its running the alternator isn't producing a charge. Thats why the check gauges light is on.
99' Jeep Grand Cherokee (Check Gauges light comes on and off)?
Recently when I stop at a red light my oil pressure gauge falls slowly and when it hits zero the "Check Gauges" light comes on, but when I start moving again it slowly rises to about 20 and the light goes off... What does this mean? and What should I do?
(I keep regular oil changes and will continue to do so, can I let this go?)
Best Answer - Chosen by Voters
Sounds like your oil pump is worn to the point that it's losing efficiency at low speeds. One way to find out if it's the pump or the sending unit is to buy a mechanical gauge and substitute it temporarily for the sending unit that feeds the dash oil pressure gauge. If the problem doesn't show on the mechanical gauge buy a new sending unit. If the indication at idle is the same on the mechanical gauge you need to get a new oil pump. Low pressure means lack of oil flow to the bearings which can result in engine failure. The Mechanical gauges are cheap and most auto parts stores sell them.
Source(s):
Been repairing and restoring cars for over 50 years.
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