Recent Questions, Troubleshooting Help & Support - Page 5
1990 bmw 3 series not starting,i purchased a
If an engine has timing, compression, the right amount of fuel entering the combustion chamber and an adequate spark it must start and run.
The fact it doesn't start and run means at least one of those requirements is absent. Perhaps fuel is stale, not reaching the combustion chamber or maybe there is too much fuel.
A quick check of the spark and ignition can be made by cranking the engine and using an ether spray into the intake. If the engine briefly runs it can be assumed the ignition is good enough and the problem is fuel related.
Cars & Trucks
56 minutes ago
Location ECT sensor 1999 Pontiac Grand Prix 3.8 liter engine
Sensor is typically located at a hot part of the engine - thermostat housing, heated intake manifold, cylinder head.
Checking a sensor isn't easy because the value changes with the temperature. The sensor is suspended into water of a range of known temperatures and ohm readings taken and compared with the specifications.
The alternative method is to read the live temperature data from the ECU and compare it with readings taken from an accurate contact or infrared thermometer. A rough indication can be made by comparing the cold engine temperature and ambient.
If the ECU is reading coolant Temperature it can be assumed the circuit (wiring) is functioning. Alternatively the circuit function can be checked with an oscilloscope or the wiring can be checked with an ohmmeter after referring to a wiring diagram.
Often the sensor is not expensive and it is more convenient to replace it and hope. Once a replacement is obtained it becomes easier to recognise when looking around the engine...
Pontiac Cars &...
58 minutes ago
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