Why does my Chevy Malibu not turn on?

Took it to the Chevy dealership and let them have it for a couple days, of course, didn’t act up. Most of the time, if you would turn the car off and back on, it would start working again. Finally, after fighting it for months, I got a check engine light for a thermostat code.

Why is my coolant temp gauge not working?

The coolant temp gauge gets its input from the BCM and the AC gets told to do its thing there as well. You could have anything from a dirty connector (“fretting”) to a failed BCM.

How does the ECM work on a Chevy Malibu?

The ECM receives the input from the ECT sensor & passes that on to the BCM which in turn passes it on to the instrument cluster. The weakest part of that chain tends to be the engine-mounted sensor itself & its wiring. But a breakdown can happen anywhere in that chain.

Why does my AC gauge drop to cold?

That could cause the gauge to drop to cold since the IP gets its data from the BCM which gets it from the ECM. The ECT isn’t directly part of the A/C control logic since it only feeds the ECM.

The coolant temp gauge gets its input from the BCM and the AC gets told to do its thing there as well. You could have anything from a dirty connector (“fretting”) to a failed BCM.

That could cause the gauge to drop to cold since the IP gets its data from the BCM which gets it from the ECM. The ECT isn’t directly part of the A/C control logic since it only feeds the ECM.

Why is the red gauge on my air conditioner not moving?

When less refrigerant is being pumped the pressure on the red gauge will be lower. In cool weather, once the required temperature is reached, the red gauge will barely increase, this may give the impression that the compressor is not pumping, even though it is. If both gauges do not move, the compressor is not pumping.

Why are my coolant fans not running when AC is turned on?

Coolant fans not running when ac is turned on. AC compressor clutch engage then it will disengage. System has freon in it. It was working find but now nothin7. My car has 234565 miles. My car has an automatic transmission.

Why are the fans running but not the temp sensor?

The issue is in the temp sensor circuit. The fans running is because the ecm does not see a temp sensor so it assumes a hot condition. If battery disconnect solves the problem it is resetting the ecm (engine control module; i.e. computer). I will try it as I thought it would be an ecm issue. I have the same problem. I replaced the temp sensor.

Why is the temperature sensor not working on my Chevy HHR?

No needle gauge reading and — reading for on board computer for engine temperature. I replaced the temperature sensor located on drivers side towards rear of engine (make sure to let engine cool down and use a drip pan) and it was still not working. I read how the on board computer can be tricked if any of the other other sensors are not working.

When does the Check Engine light stop working?

Check Engine light. RPM gauge sometimes stop working | Chevrolet Malibu Forums Check Engine light. RPM gauge sometimes stop working Not open for further replies. I have 2008 Malibu V6 3.6L engine. Two weeks ago, check engine light came on and I took the car to AutoZone and I have a code read P0430.

Why does my rpm gauge stop working after 100 miles?

Sometimes a new cat can pop a 430 code for the first 100 miles or so. You may have more than one problem or possibly they are tied together (my guess). Need more info on this: “the RPM gauge stops working”.

Why is the temperature gauge on my car not working?

Check a wiring diagram of your car to measure the wiring correctly. The next problem is a faulty temperature gauge. However, most temperature gauges are integrated with the instrument cluster on modern cars. In some cases, you can replace the temperature gauge or repair any bad solderings if you find any.

Where to buy Malibu boat parts and accessories?

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How to troubleshoot a temperature gauge in a car?

Temperature gauge troubleshooting begins with isolating the problem either to the gauge, sending unit, fuse or wiring. As with any electrical troubleshooting it is best to check all wiring connections are clean, tight and free of corrosion. The following process must be preformed with the ignition key turned to the “on” position.

How can I tell if my light gauge is hot?

Check the gauge if the needle moves toward “Hot”, the wire from the gauge to the sending unit has an open or bad connection. If it does not move, connect a test light by grounding one end to a good known ground and the other end to positive side of the gauge (typically a pink wire).

What should I do if my temperature gauge keeps going cold?

In some cases, you can replace the temperature gauge or repair any bad solderings if you find any. In other clusters, you might have to replace the instrument cluster. You can often leave your instrument cluster to an expert to repair the soldering if you do not know how to yourself.

Why does my Chevy Malibu have no AC?

My Chevy Malibu (2009 2.4) is acting a tad whacky! It either acts totally normal, or all below occurs at the same time. . . 1) coolant fan (s) come on when I start car 2) temp gauge stays on C (dead) 3) AC does not kick in (blows air with no AC) This happens at random as best I can tell.

Why does my AC not work when temp is low?

Under normal circumstances you would be right. The ECM provides both power and ground to the ECT which is a variable resistor so when system voltage starts dropping (which is a result of corroded battery terminals) the temp readings are incorrect and since system voltage is low the ECM cannot read them correctly either.

Why is my Chevy Malibu heater not working?

Learn if it’s a simple fix or time to seek out a trusted technician. Not your vehicle? Why Isn’t My Heater Working? What are common reasons my Chevrolet Malibu has heater problems?

Why does my Acura heater smell like engine coolant?

A failing heater core may cause the car’s interior to smell like engine coolant. The smell will become worse when the heater is turned on. The engine may also begin to run hotte…

Why is my engine temperature reading so low?

The most common problem when it comes to a faulty engine temperature reading is the coolant temperature sensor itself, sending the information to the cluster. Some cars have two temperature sensors, while other car models have one.

Why is the temperature gauge on my Chevy truck not working?

All I have the same issue, I own a 1996 chevy pickup c1500, before I replaced the temperature gauge sensor, the gage read two lines below 210, after I replace the temp gradually climbs but the engine not as hot as where the gage reads, need advice stephan is on point for the diagnostic procedure. First.it’s not a thermostat issue.

Why is my engine temperature sensor not working?

If it does both of these correctly, then you need a new temp sensor. If it does anything else with either of these two tests, then it’s a dash cluster/guage problem. Check your thermostat first! If your thermostat is bad, the engine will never warm up, and that can make it look like the gage is bad. Are you sure it’s warming up properly?

Where does coolant come from in a blown head gasket?

A head gasket leaking external would cause coolant to come from below the intake or exhaust manifold and often only happens when the engine is completely warmed up.

Where does the head gasket live on a car?

The head gasket lives between your engine block and cylinder head. Every modern car has this gasket but they vary in their thickness and construction based on the manufacturer’s design of the engine.

Why does my drivers side window not work?

A smaller version of GM’s rebirth of the Hummer. Hard to start yesterday,drivers side window,power door locks wont work,either by buttons on both doors or on key fob.Other windows work! Replaced Battery checked door lock fuse,still no drivers side window or door locks. Answered! View the answer I have this problem too Is this a good question?

What’s the failure mileage on a Chevy Malibu?

The failure mileage was 160,000. Driver side low beam headlight keeps going out. Replaced 2x in less than 90 days, still not working. Light works just before the new bulb clicks into place in the connector, but then as soon as the connector clicks in place, the bulb goes out.

Why does my car AC not turn on?

If you do and the AC turns on then the switch is bad – if AC doesn’t turn on then you may have a blown fuse or damaged wire, or worse a BCM failure.

Why is the AC not working on my Chevy Malibu?

While there are a variety of reasons your Chevrolet Malibu air conditioning won’t work, the most common 3 are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. 37%. of the time it’s.

Where are the power windows on a Chevy Malibu?

The power windows in your Chevy Malibu are part of a system with switches at each window, a motor and regulator at each window and a master control panel at the driver’s position. There are also a number of fuses and relays to protect the main components from damage.

How to test for electric power window problems in a Chevy?

Check the fuse panel to make sure the fuse is intact. If the window works from the driver’s control panel, move to the door testing step. If neither rear window works, check the rear window lockout switch for continuity.

What to do if your air conditioner is not working?

Replacement of most air conditioning components requires complete evacuation of the air conditioning system with a refrigerant recovery machine. Once components are re-installed, the technician will remove all air from the system in preparation for recharging the system with new refrigerant.

Why is my ambient air sensor not working?

The BCM provides the voltage source for the ambient air sensor so low system voltage would affect its accuracy as well. The SM clearly shows the ambient air sensor is involved in the compressor control logic. The OP also mentioned some other weird things happening which can be attributed to low system voltage.

How often do headlight bulbs go out on a Chevy Malibu?

The approximate failure mileage was 140,000. I’ve replaced low beam headlight bulbs 4 times (3� on passenger side) the past 13 months; the high beams 3 times (2� on passenger side). Had to run on high beams only for approx 2 months cause both low beams went out a couple of months after replacing them.

Why are the headlight connectors on my Chevy Malibu melting?

The contact stated that the headlight connectors were melted and had to be replaced 7 times within the past three months. The vehicle was taken to an independent mechanic where the contact was informed that there was too much volts going to the headlight wiring connectors causing the connectors to melt.

What are the problems with the 2009 Chevy Malibu?

See all problems of the 2009 Chevrolet Malibu . Steering gets hard to maneuver while driving all lights come on on the dashboard and have to stop and reset vehicle, headlights work when they want to. I was driving on a highway when my steering got hard to use.

What are the symptoms of a failing body control module?

5 Common Symptoms of a Failing Body Control Module (BCM) You are here: The Body Control Module (BCM) could be considered a central organizational module for your vehicle. It streamlines the manufacturing and troubleshooting aspects of electronic modules by housing the modules into one, central unit instead of each function having its own device.

What to do if your check engine light does not reset?

If your check engine light does not reset itself, you need to use an OBD2 scanner to do it. If you want to reset the check engine light with an OBD2 scanner, you can follow this guide: How to reset check engine light.

Why does my Buick LeSabre have a check engine light?

On the fuel system of your Buick LeSabre, there is a component called the cold start injector or cold start valve. This helps to mix the air/fuel ratio to assist your vehicle start… What you are describing is often a sign of low transmission fluid or a faulty transmission control solenoid.

How do I reset check engine light on Chevy Malibu?

Now, look at the dash, and insert Your key into the ignition. Turn it quickly to the on position, then back off again. Do this while ensuring You do not accidentally turn on the engine itself.

Can a check engine light go off by itself?

Will the check engine light go off by itself? Yes, The check engine light will reset itself after a fixed amount of time if you fixed the problem in most car models. Usually, this is 10-30 cycles. One cycle is from a cold start until the engine is at working temperature.

Why is my Check Engine light on in my Bugatti Chiron?

The monstrous Bugatti Chiron has 16. No matter how many you have though, a malfunctioning coil will almost certainly trigger the check engine light, but remember, if your car burns diesel, you have neither ignition coils nor spark plugs.

Why does my Chevy Malibu not turn on?