Chevrolet Silverado 1500 - Recent Questions, Troubleshooting & Support - Page 3

All the P**** codes can be found on Google. Here is the first one. All the links tell the problem and the fix. They are all regarding the throttle pedal position. https://www.google.com/search?q=2003+Silverado+P0120 and the second one The P0220 code means that the vehicle's powertrain control module has detected a voltage or resistance reading that is outside of specifications that were set by the manufacturer for this circuit.

P0220 OBD-II Trouble Code: Throttle/Pedal Position Sensor ...

P1516 https://www.google.com/search?q=2003+Silverado+P1516 P1518 https://www.google.com/search?q=2003+Silverado+P1518 ..

the sm shows how to prime HLA they can not just be put in dry. HLA = hydraulic lash adjusters , aka lifters but never tappets. not talking rockers. Active Fuel Management (AFM) it shuts down valves this AFM and to 4 cylinders so defeats rock+HLA. to do that and is complex. smoking is just oil that fell from valve cover pulled and oil lands on the exhaust manifold, etc. you did not say smokes in the engine bay or at rear of car. changing and HLA, does not allow oil to fall past head valves ever. unless valve seals are gone or cracked in half, but what will be, will be. the sad story is here, nothing simple about any of this and expensive to fix see the horrors there of owning complex (VDE,variable displacement engines now and in the past, all FED mandated junk) https://www.onallcylinders.com/2017/11/30/how-to-delete-or-disable-active-fuel-management-afm-on-gm-engines/

1. The computer sends a signal to the LOMA.
2. The LOMA solenoids open.
3. Oil flows to the special lifters through the AFM towers.
4. This oil collapses the plunger inside the lifter.
5. The collapsed lifters will not engage the pushrods and both valves remain closed.

sounds like you have a coolant leak, if coolant is low it will cause both of your symtoms as to where it is coming from, there are many places but common ones are hoses/clamps, water pump or radiator.

you need to turn ignition on and leave key in on position for ten minutes then turn key off then back on again for another ten minutes then one more time for a total of three times or 30 minutes and the system should relearn the key. System is called passlock. I can email you the procedure form alldata if you want.

https://www.gmtruckclub.com/threads/1993-2500-lost-1st-low-gear.1476159/ Solenoid problem

THE LUG NUT TORQUE SPEC - 140FT/LBS\
CALIPER MOUNT - 80FT/LBS
CALIPER BRACKET 129FT/LBS
AXLE NUT 177FT/LBS

Sounds like a bad ignition switch.

The power steering pump shaft may have broken inside the pump. I have seen this happen on a these trucks. Have your pump checked.

It's a really simple fix. Just take the plastic of around the column and the will be an orange and a white wire that runs to the button on the shifter. One of those wires are probably broken. Very common problem on these trucks. You can solder and heat shrink it or use a butconnector. Doesn't take too long at all. Hope this helps. It's how I've fixed the last five anyway. I actually added some extra wire and rerouted it in the column plastic. The tilt wheel seems to cut it so it's just bad location on GM trucks behalf

Orange is Battery Power

2002 Silverado 1500 Stereo Wiring Diagram - The12Volt

https://www.the12volt.com > installbay > forum_posts Jan 13, 2010 · 3 posts · 3 authors 2002 Silverado 1500 Stereo Wiring Diagram - I'm trying to help a buddy install a Clarion HU in his '02 Silverado. Stock stereo is a CD ... https://www.google.com/search?q=2002+chevy+1500+radio+wiring+diagram ..

Place a piece of black electrical tape over it ,problem solved .you know the oil is good

Yes it is most likely a vacuum actuator there are more then one . They open and close little doors in the ducts to deriect air flow inside the ducts . They are not easy to get at in most cases however you should look at all vacuum lines going to and near the unit its controlled by engine vacuum . exhust all other opptions first before takeing the dash out . The problem could also be electrical check the control switches make sure the switch is not bad on one side . Spend some time looking and thinking before you start riping things apart. Good luck with it

DTC P0496: EVAP Emission High Purge Flow Fault, EVAP Flow During A Non-Purge Condition

The 4x4 will not engage unless the ABS is in proper order the reason being. ABS cannot operate in a 4x4 engagement,and in return the 4x4 will not hi or low without the ABS concerns corrected the solution fix ABS and the 4x4 switch goes back to normal operations

It is likely the charcoal canister for the fuel tank vapors, and all part of EPA regs.

I would have a tranny shop check it out sounds like the clutch in 3rd gear is gone.

Question moved from Spanish car maker Seat (See-At). Jeff is our professional auto-electrician tech here, but I will just say this vehicle has a LOT of fuses! As I side note, I hope the airbag doesn't explode when you are playing with the connections!

Chevrolet Silverado (mk2; 2007-2013) fuses and relays

https://fuse-box.info > chevrolet > chevrolet-silverado-... Fuse box diagram - Here you will find fuse box diagrams of Chevrolet Silverado 2007, 2008, 2009, 2010, 2011, 2012, 2013, get information about the location ... ..

i have a 2001 chevy z-71 5.3L. I keep getting a random/multiple misfire code for cylinder 1 . I have replaced plugs, wires, coil pack(only on #1 cylinder)., and fuel pump. I still keep getting the cylinder 1 misfire code. I put truck on a scanner and watched the cylinders. # 1 misfires at idle but quickly stops misfiring at around 1000 rpms. you can here the engine miss at idle but truck runs great on road . anyone else ever had this problem?

I just had the same issue with a 1999 2500HD and the vibration got worse above 50 mph. Problem was resolved with a new driveshaft. Old one (aluminum) was badly out of true and the problem didn't really occur until I had the U joints changed - then bent driveshaft vibration was noticeable. New driveshaft resolved issue.

This is often a sign the plug isn't firing correctly. Is the engine running rough at idle and under power? Using insulated grips, with the plug out and fitted into the plug wire, hold it against the engine block. Get a helper to crank the engine for NO MORE THAN 3 seconds. Look for a strong blue spark firing evenly. If there is no spark or it is weak replace ALL the plugs with new ones and recheck #2 after running the engine.