2005 Chevrolet Chevrolet Cobalt Base - Answered Questions & Fixed issues

'Cranking' is the action of the engine spinning due to the starter motor. 'Firing' or 'starting' is what is supposed to happen after you let go of the ignition key. Many are confused by the two terms. Is the red security light on?

Should be fine as it is the same generation. https://en.wikipedia.org/wiki/Chevrolet_Cobalt ...

The most common cause of this is bad tire balance. The other thing is wheel bearings.

Your taillights are controlled by the multi-switch on the steering column that also controls the headlights and perhaps some other items.

Fuel pump , fuel pump relay , Test fuel system . GM Fuel Pump Relay Testing

Only way I know is to unpluge trunk latch celinoid and just use the key to enter the trunk

Check the cigarette fuse, Sometimes it's the memory of the clock on the radio and if you pop that from a cell phone your radio won't work..

Why did you change the pump? I bet it was because you were having a problem, true? Perhaps the pump was bad but this was not the only issue? Is fuel pressure now correct both at key on and while running? If yes, go back to basics. Good spark and timing? EGR dirty? IAC dirty? If car was running lean before pump change, perhaps restoring correct pressure has broken loose carbon deposits and a can of SeaFoam in the gas will help.

check wire on vacuum lines behind the radio may of gotten loose it sounds like the control for heat and cooling are unpluged.

did you bleed the system? no bleed after caliper and wheel cyl. replacement no brakes!

This should produce a code that you can get checked for free at most auto part stores. This isn't definitive but a start. Since this could be caused by almost any number of issues, I suggest routine maintenance first. Change oil, Air and fuel filters. Stay away from a dealer unless you want to pay big $$$ use an independent shop of reputable reviews to do the maintenance and likely they will assit if any urther action is needed wihtout double-dipping into your wallet.

There are several... which one are you looking for. Main bus is under the hood, drivers side right in front of the 'jumper post'. The transmission computer is under the dash below steering column.

I'm not sure but I think that fuse is in the fuse box under the hood. If not it will be in the fuse panel in the driver's footwell above the Park Brake pedal. Try this web page. The fuse is marked as "FRT WPR". A 25A fuse. NOTE Only replace fuses with one of the same Amp rating. Fuses are commonly colour coded so that should help make sure it's the correct one. https://www.carfusebox.com/chevrolet-s10-1988-fuse-boxblock-circuit-breaker-diagram/

Some potential solutions: EGR (Exhaust Gas Recirculation): You mentioned that you cleaned the EGR, but it's still showing as a fault. The EGR system recirculates exhaust gases back into the intake manifold to reduce emissions. If the EGR valve is malfunctioning or clogged, it can affect engine performance. Here are some steps to consider: Check for Vacuum Leaks: Inspect the vacuum lines connected to the EGR valve for leaks or cracks. A vacuum leak can disrupt EGR operation. Test the EGR Valve: Use a vacuum pump to check if the EGR valve opens and closes properly. If it doesn't, consider replacing it. Clean the Intake Manifold: Sometimes carbon buildup in the intake manifold can affect EGR flow. Clean the intake manifold thoroughly. Thermostat: You've already replaced the thermostat, which is good. A faulty thermostat can cause overheating or poor engine performance. Make sure the new thermostat is functioning correctly. System Voltage Low: This could be related to the charging system (alternator, battery, or wiring). Here are some steps to troubleshoot: Check Battery Voltage: Measure the battery voltage when the engine is off and when it's running. It should be around 12.6V when off and around 13.8-14.4V when running. Inspect Alternator: Ensure the alternator is charging properly. If it's not, consider replacing it. Check Grounds and Wiring: Loose or corroded connections can cause voltage issues. Inspect battery terminals, ground connections, and wiring. Idle Issues: If the engine won't idle properly, consider the following: Idle Air Control Valve (IACV): The IACV controls idle speed. Clean or replace it if necessary. Throttle Body Cleaning: A dirty throttle body can affect idle quality. Clean it using throttle body cleaner. Vacuum Leaks: Check for vacuum leaks around the intake manifold, hoses, and gaskets. Timing Chain: The B12D1 engine uses a timing chain. However, if it's stretched or worn, it can cause issues like poor performance or stalling. Consider having the timing chain inspected and replaced if needed. Remember that diagnosing engine issues can be complex, and it's often best to consult a professional mechanic or use diagnostic tools.

Tensioner pulleys are designed to be 'Self Adjusting'. These pulleys are on spring loaded arms so they automatically push against the belt keeping it tight. You use a socket or a spanner to swing the pulley arm back against this spring. *Note* This is a powerful spring so BE CAREFUL when your working on it! A lot of these tensioners have two small holes to help with installing a belt. When you swing the tensioner arm back these two holes line up with each other. You can then slide a hex key, or something similar, through both holes and it holds the arm back giving you space to get the belt on. *Caution* When your ready to release the tensioner DO NOT just pull the hex key out!! With the socket or spanner you used to swing the tensioner arm back push the arm against the spring again, carefully pull the allen key out then Carefully release the pressure on the spring so the pulley sits correctly and tensions the belt.

Help in the link. It may be a faulty switch, but you can test it. https://www.google.com/search?q=2012+Chevrolet+Orlando+open+jammed+hatch ..

You either replace the whole board as a module, or a company like RS Components, or even Amazon can sell you just the solder-on USB socket. https://www.google.com/search?q=usb+port+replacement ..

The oil cooler runs through the radiator and when damaged can exchange fluids.

google 1994 Chevrolet C1500 5.7 l ransmission control module select images and you will see module.

The reverse wire on the car audio harness for a 2006 Chevrolet Silverado is yellow. If you're connecting an aftermarket stereo, this wire is used to trigger the reverse camera display when you shift into reverse. Make sure to connect it appropriately for your specific installation needs.