Question about 2004 Chevrolet TrailBlazer

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Service engine light came on code po445

Something is wronge with emissions or thermostat i think it getting hot

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  • Anonymous Mar 19, 2014

    service engine light

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Change out the thermostat fiirst to see if that disent solve the problem

Posted on Aug 31, 2008

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I have a 1999 Saturn sc3. It was fine until the hurricane this past weekend. As soon as I turned the car on, the l"Service Engine Soon" light came on. I am wondering if it is safe to drive or...


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2004 Grand Prix GT gas cap light,an engine light is on. Took it to autozone an code read po445 replaced gas cap, an light is still on. is there a time limit on light going out if i jus replaced it? Or what...


P0445 - Evaporative Emission Control System Purge Control Valve Circuit Shorted is located in the engine compartment and is most likely the root of the problem.Would check the plug and wiring going to this to verify that no plug or wiring damaged has occurred.It is quite possible the part has gone bad.

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Service engine light is on. What could it be?


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Check engine lit on code po442,po445


I have a dodge stratus and the engine light is on and it drives and its as though someone stopped it with a grabbing sensation but its not the brakes they are not involved. i thought the pause and cut off was caused by the transmission but it not that either

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2004 jeep grand cherokee emission pump and hoses going bad which is causing the check engine light to come on. This wa told to me by a service center. Any potential truth to this?


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Overheating


Here are a couple of suggestions.

1. Check to see if the electric cooling fans are working properly. Let the car idle until the engine gets hot. Watch to see if the dual fans ever kick in. If the fans never turn on then the problem could be the fans themselves, the fan relay, a fuse, or a temperature sensor.


2. Your thermostat may be stuck closed.


3. When the service engine light is on you can take the car to most auto parts stores and they will pull the codes for you for free. This could help to identify where the problem is.

Running the AC will make the car overheat faster because it loads the engine down. If you driving somewhere and you think you might be overheating and you can't stop to let the car cool down you can roll down the windows and turn on the heater. The heater works by pulling heat out of the engine and moving it to the passenger compartment. It may be uncomfortable but it can temporarily prevent your engine from overheating. This technique is especially useful if you're driving through a desert like in the southwest.

May 22, 2009 | 2001 Nissan Xterra

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I have a check engine light on my 2003 chevy truck it reads PO445


P0445 Evaporative Emission Control System Purge Control Valve Circuit Shorted
The Evaporative Emissions System (EVAP) allows fumes from the gas tank to enter the engine to be burned, rather than vented into the atmosphere as an emission. The purge valve solenoid is supplied switched battery voltage. The ECM controls the valve by operating the ground circuit, opening the purge valve at specific times allowing these gasses to enter the engine. The ECM monitors the ground circuit as well, watching for faults. When the purge solenoid isn't activated, the ECM should see a high voltage on the ground circuit. When the solenoid is activated, the ECM should see the ground voltage pulled low, close to zero. If the ECM doesn't see these expected voltages, or senses an open in the circuit, this code is set.
Hope this helps

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