Question about 2000 Chevrolet Tracker

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Turns over won't start timeing chains good oil leaking from valve cover gasket plugs not firing all the time could oil have damaged cencer on end of cam shaft how can I test it

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Check or replace coil pack, and replace spark plugs. Also check if fuel pump is functioning, if not or when you turn the key on and won't hear a 3-5 sec buzz sound, may have bad pump. Fuel pump and coil pack is most common reason that engine turns over and doesn't start.

Posted on Jul 01, 2009

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Oil on the spark plugs/failing cylinder?


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I don't understand what a rocca cover is, but your two most common oil leak locations are the front cam seal behind the timing belt pulley and the rear cam journal plug in the valve cover.
For a leak at the front, next time you replace your timing belt, unbolt the pulley, extract the old seal with a sharp hook, and press in a new seal. Be sure that the new seal is pressed in straight, and grease the lips before you press it in. Often, the front crankshaft seal fails about the same time, so replace that one as well while you have the timing belt off.
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Any time you have problems with oil leaks, suspect that the crankcase is pressurizing due to a plugged ventilation system. Check the flame arrestor to make sure it is clean and clear. The flame arrestor is between the legs of the intake manifold, generally in a hard-to-get-at location. Also, blow down the hose below the flame arrestor to make sure that the oil mist separator box on the side of the engine block has not plugged up with sludge.

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REMOVAL & INSTALLATION NOTE: The manufacturer recommends that the entire powertrain be removed from the vehicle before removing the cylinder heads.
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Drain the cooling system.
  3. Properly relieve the fuel system pressure.
  4. Remove or disconnect the following:
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    With the camshafts remaining in the cylinder head some valves will be open at all times. Do not rest the cylinder head on a flat service with the cylinder face down, or valve damage will result. NOTE: Clean all gasket mating surfaces. Clean the head bolt holes in the crankcase. WARNING
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