» » »

Chevrolet Q&A

Ask Your Question

2001 Chevrolet Blazer Question: are there 2 temp sensors for this vehicle.

 

Question

kerrie11, Clay, NY, March 04, 2013, 09:59
 Rookie

one for the computer and then another one. if so could you tell me where the other sensor is for the computer

1 Answer
Flag This
  • Answer #1

    rpclements March 04, 2013, 11:11
     Journeyman

    The one the computer uses is the (ECT) coolant temperature sensor. It's located right on your thermostat housing.

    Flag This
  • Reply

    kerrie11, March 04, 2013, 11:27
     Rookie

    where is the other one located

    Flag This
  • Reply

    rpclements, March 04, 2013, 12:19
     Journeyman

    Don't know for certain but may not have another one. Coolant temperature sensor may also control your guage as well. Tried to look up part online but didn't give another listing.

    Why you ask anyway- what's the problem?

    Flag This
  • Reply

    kerrie11, March 05, 2013, 05:08
     Rookie

    we have a2001 chevy blazer that noone seems to know what the problem is with this vehicle. one person says the computer, another person says that the other sensor that controls the main computer is gone. another person says that it is the wiring. when it gets to 180 it starts to run bad. we have changed everything twice brand new stuff starting with the fuel pump and sending unit all the way up to the engine. cap rotor plug wires spider regulator temp sensors o2 sensors cleaned out the converters. and it still runs bad

    Flag This
  • Reply

    rpclements, March 06, 2013, 07:00
     Journeyman

    Did you replace the coolant temp sensor? Is check engine light on?

    Flag This
  • Reply

    kerrie11, March 06, 2013, 09:38
     Rookie

    we have replaced that also. so we just replaced the map sensor and it seems like it runs better. what does a map sensor do and will it relearn it self. why does it seem like it still wants to stall

    Flag This
  • Reply

    rpclements, March 08, 2013, 19:38
     Journeyman

    The manifold absolute pressure sensor provides instantaneous manifold pressure information to the engine's electronic control unit (ECU). The data is used to calculate air density and determine the engine's air mass flow rate, which in turn determines the required fuel metering for optimum combustion (see stoichiometry) and influence the advance or retard of ignition timing.

    Reply
    Flag This