20 Most Recent 2006 Chevrolet Silverado - Page 9 Questions & Answers

Hi.

If you have been told to replace the fuel pump, then there was likely a problem with fuel pressure. In that case, if fuel pump has been replaced, then the problem is either fuel pressure regulator or a vacuum leak.

Fuel pressure can be tested using a gauge like this : Lisle 20300 Vacuum Gauge and Fuel Pump. Use the gauge following the instructions below

With the ignition turned ON and the fuel pump running, the pressure indicated by the fuel pressure gauge must read about 55-62 psi . The spring located inside the fuel pressure regulator determines the fuel pressure.
If the fuel pressure is dropping more than 5 psi in ten minutes, that means that there is a leak located in one or more of the following areas:

• Fuel pump check valve
• Fuel pump flex pipe
• Pressure regulator
• Fuel injectors

If the fuel system drops more than 2 psi in 10 minute after pressure is relieved to 10 psi then there is a leaking fuel pump check valve.
If the fuel pressure drops-off during acceleration, cruise, or hard cornering it will cause a lean condition (too much air in the mixture. The lean condition will result in loss of power, surging, or misfire. You can diagnose a lean condition using a scan tool. It an extremely lean condition occurs check the vacuum system for leaks.

When the engine is at idle, the manifold pressure is low. This low pressure is applied to the fuel pressure regulator diaphragm. The low pressure will offset the pressure being applied to the fuel pressure regulator diaphragm by the spring inside the fuel pressure regulator. When this happens, the result is lower fuel pressure. The fuel pressure at idle should always be less than the fuel pressure noted in step 2 with the engine OFF.

A rich condition may result from the fuel pressure being above 427 kPa (62 psi) . A rich condition may result in codes P0132, P0152, P0172 or P0175. Driveability conditions associated with rich conditions include hard starting followed by black smoke and sulfur smell in the exhaust.


Problem is likely fuel pressure regulator. Do the test above and test the vacuum system. Big vacuum leaks can be spotted because of the hissing sound. Smaller leaks are detected using the same gauge used for fuel pressure. After placing gauge in fuel lines, read pressure while spraying carb cleaner on vacuum hoses. If there is a leak, then pressure will go up.

If that is not the problem, then mass airflow sensor,throttle position sensor,air idle sensor,map sensor,crank sensor with shim, rotor and distributor cap,plug wires,coil are all parts that must be tested.

If pressure regulator has not been replaced, then the problem is more likely vacuum leak or the fuel pressure regulator leaking fuel into the intake.

The fuel pressure regulator is located inside the intake manifold. The part is indicated as number 6 in the picture below:



Regards.

Ginko

The fuel filter on a 2006 Silverado is part of the fuel pump module - which also contains the fuel level sender and pump. They are lifetime filters and only need to be replaced in the wake a catastrophic event.

Is there Power to the switch? to the Motor? If so can you hear the motor start to move? If you do hear or feel it start it is more then likely the Window Regulator.....

You have a faulty blower motor resistor and wiring harness assembly. It's a common problem on these trucks. You will find it under the dash on the passenger side just above where the passengers feet go. You'll need to remove the plastic hush cover under the dash to gain access to it. It's about the size of a pack of cigarettes and is quite easy to splice in the new one. The dealer will have an upgraded replacement kit. Use a bit of di-electric grease on the splices and new plugs to prevent corrosion and another failure. Don't put off fixing it because the wiring is overheated and getting fried. Some of these have caught fire if not fixed. The dealer will know just what you need. They sell lots of these. The one in my Chevy went bad last winter.

there is a bolt at the bell housing that holds the upper tube in position that will have to be removed to remove the upper section.the lower section just sits in the transmission body and you just have to pull it out it will have an 0 ring to seal the tube so it won`t leak trans fluid.make sure you clean area around the tube by the trans body where the tube enters.

You mentioned fuses but did you make sure there is not a relay. If you have a voltmeter or test light, It is very simple to get to blower motor under passenger side panel should have to 7mm head screws take it of unplug motor turn it on put test light to b+ side see if it is getting power, If it is than the blower is most likely bad.

by turning the star wheel between the shoes at the bottom

It could be the contacts in the pad but I would be more inclined to think you have a faulty clockspring under the air bag in the steering wheel.

Hi.

If the problem is brake-related, as it looks from description, check brake system, ABS, and front rotor hub. Double check the new pads and rotor.

See if any of the new rotors is worn irregularly. In that case you will need to check caliper and rest of the brake system.

If you get noise and kind of pulsating on pedal when braking at slow speed the problem is the ABS. In that case the ABS pump is kicking too early because of a defective speed sensor. GM trucks have the speed sensor built-in with the front wheel bearing hub.

The noise while restarting can also be a faulty ABS pump. In that case the vehicle will run normally, usually you are able to tell if there is a locked brake.

This truck has several common troubles involving the brake system. Check brakes and front train, if everything is OK check ABS pump and system.

Regards.

Ginko

Why are you messing with it in the first place?? This is a job for someone who knows what they are doimg,,like a wheel alignment garage.

Hi hope this helps.
I would check the fuel vent hose.
It maybe clogged or have a kink.
What is happening is that when you put fuel into the tank the air and fumes have no place to go.
That's why ti will back up on you.
check your fuel hoses.

Make sure you have the right amount of coolant in your truck. Make sure the fans are working properly. If they are not, check the fuses. You could have a bad raditator. Check to make sure you are not leaking any coolant. If these check out, the most common problem would be your thermostat. It may also be your water pump.

P0449....Evaporative Emission Control System Vent Valve/Solenoid Circuit

Never seen one of these vehicles before (im in oz), however most cars are similar. If the mirror is on the door then there should be a cover at the bottom front of the the side door glass inside the door. Get this off and your screws should all be there. Hope this helps mate.

I bet it is in your ignition system. Have you changed the plugs or wires in a while?

It generally is the cigarette lighter fuse which is located under the hood in the fuse panel on the passenger side