After a total engine repair (overhaul) two problems have arised, maybe one has to do with the other.
When I restart the engine after driving at operating temperature (say for 15 minutes or more) the engine revs as for a normal start but immediately stalls, it will not keep the minimum idle speed. This only happens when the engine is restarted within 5 - 10 minutes after being driven. After it starts, I have to keep the engine alive with throttle for about 10 seconds until it settles at normal idle. Once settled, it will not stall. The engine idles good cold and hot. Its just at restart that it will not hold, sometimes the revs will start bouncing between near stall and 1.000 till it settles. With the engine repair, gaskets, spark plugs, spark wires, distributor cap, rotor, air filter, gas filter, timing belt, have been replaced.
The other problem is coolant overflow, as well, all components have been replaced, radiator, rad cap, hoses, thermostat, fans working ok, water pump. This ocurred simultaneously with the restart problem after the engine repair. The temperature needle goes up near the overheat zone but will not reach the overheat zone. The coolant reservoir gets fillled up by overflow specially on long trips (after 1.5 hours drving on highway). There are no visible leaks. There is water coming out of the exhaust.
Mechanics suspect a wrong ignition timing causing overheating that evaporates the water and causing the hot restart problem.
Others say its a bad head gasket and compression leaking into the coolant system causing the overflow, and once I turn off the car coolant leaking into the cylinders causing the hard start when hot.
Sorry for the long explanation but already had the car in with 4 different shops and no solution.
Thank you.
When I restart the engine after driving at operating temperature (say for 15 minutes or more) the engine revs as for a normal start but immediately stalls, it will not keep the minimum idle speed. This only happens when the engine is restarted within 5 - 10 minutes after being driven. After it starts, I have to keep the engine alive with throttle for about 10 seconds until it settles at normal idle. Once settled, it will not stall. The engine idles good cold and hot. Its just at restart that it will not hold, sometimes the revs will start bouncing between near stall and 1.000 till it settles. With the engine repair, gaskets, spark plugs, spark wires, distributor cap, rotor, air filter, gas filter, timing belt, have been replaced.
The other problem is coolant overflow, as well, all components have been replaced, radiator, rad cap, hoses, thermostat, fans working ok, water pump. This ocurred simultaneously with the restart problem after the engine repair. The temperature needle goes up near the overheat zone but will not reach the overheat zone. The coolant reservoir gets fillled up by overflow specially on long trips (after 1.5 hours drving on highway). There are no visible leaks. There is water coming out of the exhaust.
Mechanics suspect a wrong ignition timing causing overheating that evaporates the water and causing the hot restart problem.
Others say its a bad head gasket and compression leaking into the coolant system causing the overflow, and once I turn off the car coolant leaking into the cylinders causing the hard start when hot.
Sorry for the long explanation but already had the car in with 4 different shops and no solution.
Thank you.
May 8, 2008 at 1:48 PM
