probly not
The year, make, model, engine info and exactly which sensors you are looking for would help.
One sensor would be for your engine temperature gauge and the other sensor for the OBD II engine management system
Coolant Temperature Sensor
There are two o2 sensors one before the converter and one after. There is a TSB (technical service bulletin) on the vibe o2 sensor. Depending on your milage your car may be covered. The heated sensor (sensor 1) is on the exhaust behind the engine. Trouble codes would be P0171 and P2195 for the TSB/recall.
In a 2004 Pontiac Sunfire, there are two oxygen sensors. One would be located in the exhaust before the catalytic converter. The other is located in the exhaust after the catalytic converter.
Yes, just about any sensor on the engine could cause a no start.Yes, just about any sensor on the engine could cause a no start.
Depending on which sensor is bad the engine may run like crap and the check engine light should be on.
Bank 1 is the passenger side of the engine in your Mercury Mountaineer Sensor 1 would be close to the engine before the exhaust enters the catalytic converter ( upstream sensor )
TPS sensor or maf. I seafoamed my entire car seemed to do the trick
The engine and mounts will be just fine. Everything should match up identically. Only issue that COULD arise would be the O2 sensor; but the chances are slim. I recently swapped a sunfire engine into my cavalier, and it worked fine.
Check the 2001 Grand Ams crank shaft position sensor first. If the sensor is bad then the engine will not get fire or start.
Sensor failure is often heat related , when crank sensors first start to go out they often have an intermittent failure when the engine is at full operating temperature. You are cooling the sensor with water.