I have a 95 Buick LeSabre with 109,000 miles on it and lately when I start the car the engine light has been coming on. On the freeway the other day all of a sudden it lost alot of power and the voltage,overheating, and engine came on simultaneousely, but then the voltage, and overheating light went off and just the engine light stayed on, and the car kept running picking up power once again. Aside from this, the car had seemed to be running fine besides the occasional engine light coming on when I would start the car. It also has been feeling like it wants to die when idoling. I took it up to Auto Zone and they tested the battery and found that it was bad so I replaced it, but now the engine light has come on again and it seems to be running very hot to where it begins to fog up the windshield. I'm not sure where to even begin to look next besides maybe the water pump or radiator, any ideas?
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I saw exact same problem for few days. Now I see check engine light all the time and engine speed is normal.
The cruise control stopped working. Cruise control sign so nOT light up when I turn it ON. Nor does it works.
But car seems to work fine.
Suspect either the camshaft or crankshaft sensor is failing with engine heat. If you could get the check engine light to stay on, a scanner would likely reveal the problem. If you could hook up the scanner and drive with it on, it might reveal the problem at the moment of failure.
It NEVER was the camshaft sensor! Unless, you've removed the engine lately, which I doubt. RUN to Advance Auto Parts and buy a can of "SeaFoam" and add to your gas tank per instructions...drive at least 100 miles and the problem should go away...IF it doesn't you'll have to replace the O2 sensors in the exhaust system...Any good mechanic should be able to do this for much less $$ than the dealership DO NOT go to the dealer for repairs! Good Luck
If the starter is turning the engine, try re-setting the security system (leave key on till light stops blinking.) If the starter does not turn, you may have some success in re-setting system, if not you need to check battery voltage and voltages in starter system till you find the problem...can be something as simple as a bad connection at the battery. If you need help with further testing, just ask.
Has the fuel filter been chg. lately. If it has, maybe a fuel pressure test is in order. Fuel pump might be geeting weak and does not show up until it gets warmed up. Fuel pumps are a common problem on this type of cars.