Question about 1993 Pontiac Grand Am

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When i start my car it very slowly leaks oil from a censor on the top drivers side of the engine above the coolant housing and right behind the powersteering resivoir.

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Is it the Quad4 engine? If so, that is where your oil sending unit is located (sends the signal to the oil-pressure gauge). Same thing happened on an 1995 Z24 I had. It takes minutes to replace and is not very expensive.

Posted on Oct 06, 2010

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Our 2004 Isuzu Rodeo has developed a coolant leak. The leak appears to be around or above a little panel or plate immediately behind the oil pan? Cannot find any other source. What is inside the littl


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My mini is using alot of coolant we think the thermostat is blocked, its pressuerising it back through the resevoir


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Win i start the car and look under the hood, there is oil coming out of a box that is, on the side of the block. But above the oil filter ?? . How do i fix that, is it a gasket or what ??


That is the engine oil cooler. There is a 'O' ring between it and the oil filter mount. They harden and crack.

Ask your dealer for the large Oil Cooler 'O' Ring.

Remove oil filter. Remove exposed pipe nut holding oil cooler to housing. If nessacary, drain coolant so you can disconnect coolant hoses from cooler or catch coolant as hoses disconnected. Swing oil cooler away and remove old 'O' ring.

Place new 'O' ring with grease on oil cooler it to hold it in place and reassemble. Tighten oil filter pipe nut to around 18 ft lbs .

Refit oil filter. Refit coolant hoses and top of oil and coolant.
Run engine to check for leaks and allow to cool. Top of coolant to COLD level if required.

You will need hose clamp pliers and wrench for oil cooler pipe nut. Pliers can be obtained from most parts stores.

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Someone put water from a cooler into the engine where you would put the coolant. it then began to boil out out the top where you put the coolant and coolant was leaking from underneath the car from right...


You have a bad hose or lose connection. By driving the car it will only get worse from the internal pressure. Putting water into it from a cooler is OK as long as you do it slowly and with the engine running. Take your car to a mechanic you trust and have them diagnose the problem then go elsewhere for a second opion. If the diagnosis is the same then find someone cheap and realiable to repair.
Good luck and thanks for your question and I hope my suggestions help. burdfrenzy
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Where can i find the temperture sensor


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Oil and Coolant leak of about 11/2 quarts coolant - 1/2 quart oil per night Leak 1 (Coolant) Appears to be coming from the radiator bottom right corner. Leak 2 (oil) Appears to be coming from the engine...


The passenger right side of the car doesn't have any flanges for cooling system, if that's correct then your radiator has a leak or puncture.

The driver side of vehicle has both the in and out flanges for the radiator. Very common to see leak at the drain valve leaking (not closed tightly). In the same area would be bottom flange of radiator which the composite flange is degrading and causing the leak.

The middle part of the bottom engine compartment is where your oil/coolant cooler assembly just above the oil filter. A loose oil filter could be the cause 95% of the time and 5% would be a bad o-ring from the oil cooler to the oil filter flange.

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There is a water leak from the top of the timing chain cover. Do I have to remove the whole cover along with the oil pan, a/c, ps pump and all brackets?


you shouldn't need to do anything quite so drastic. if you are leaking coolant and not oil, then its much easier than that. There are several coolant/heater hoses and the thermostat housing near the top of the timing cover, but when the engine is working properly there should be no water behind the front cover. top off the cooling system, run the engine, and watch to see where it starts leaking from when the engine gets warm.

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Coolant leak from rear of engine in bellhouseing area


Sounds like you have a freeze plug that has rusted out. And it is located in side the bell housing behind the flywheel. You will need to remove the transmission and the flywheel to gain access to the freeze plugs. There are two of them at the rear of the engine above the center line of the crankshaft. One to the left and one to the right.

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