Top 20 2008 Chevrolet Silverado 2500HD - Page 3 Questions & Answers

Does it have spark at the plugs ?

If none of the headlights burn I would suspect the switch . Can you test for power and ground to the sockets ? I would rather eliminate all fuses and wiring, connection issues first .

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1. To adjust the push rod length, first remove the master cylinder from the power booster.
2. Using a pair of pliers, turn the push rod adjusting not in to shorten and out to lengthen the push rod.
3. If the push rod is nonadjustable, use shims between the master cylinder and power booster to shorten it.

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When they cleaned the engine they got same of the electrical parts wet they may need replaced

The key is to lift up once all screws are out. https://www.youtube.com/watch?v=c8cBLiOHQro

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Make sure that the positive battery cables are clean and tight. Sometimes one cable will have power which will give you lights and the other no power to start and run the engine.

selinoid ? Solenoid Wouldn't think so , but you never know without testing . With the truck running you step on the brake which let's you shift from park into a gear . That part works right ? Automatic Transmission Shift Lock Control Circuit Description The automatic transmission shift lock control system prevents the automatic transmission from being shifted out of park position unless you depress the brake pedal with the ignition in run or start. When the ignition switch is in run or start, the current flows from the BU/LPS fuse located in the engine wiring harness junction block through CKT 839 (PNK) to the park/neutral position switch. The park/neutral position switch also feeds the backup lamps portion of the switch. With the transmission in park, the current flows to the automatic transmission shift lock control fuse located in the engine wiring harness junction block through CKT 275 (LT GRN). The current then flows to the stoplamp switch through CKT 584 (LT GRN/BLK). The current continues to the automatic transmission shift lock control solenoid through CKT 1135 (DK GRN/WHT). The ground path is provided through CKT 1850 (BLK) to G203. When you depress the brake pedal, the normally closed contacts in the stoplamp switch open and the current flow is interrupted. When the current flow interrupts the automatic transmission shift lock control solenoid de-energizes. The transmission may then shift to another gear. Once the transmission shifts to another gear (except park), the contacts in the park/neutral switch are open thus stopping the current flow to energize the solenoid when the brake pedal releases.

You can program it if you have a good scan tool,or take a trip to a good garage in your area,they will have one and fire up your radio.

Check this site. It will have all of the torque specs that you are looking for. https://www.bakesonline.com/images/MediaLibrary/Indmar_6.0LQ9RepairSpecs.pdf

Can park be selected by going under the vehicle and manually pushing the gear selector into the park position? If so then cable adjustment is next.

Should be 4-6 bolts and nuts under the truck on the front of the frame rail

Have you tried setting the time on your clock? Owners manual should walk you thru the steps.

Look in the fuse box it is marked in small letters.

There is a relay for the AC, check that.

The windows ,locks etc... are controlled by an electronic control module ,BCM - body control module . Doubt shifting into reverse or the water did anything . Shifting into reverse could have damaged the internal parts of the transmission only . Did water get inside the driver door ? Taking the vehicle to a qualified repair shop that has a professional scan tool to have a full vehicle scan done ,is what you should do . Not a part store , their code reader can not read BCM or driver door module codes .

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