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The crankshaft position sensor, #15
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Chevrolet Cars &... | 2,016 views | 1 helpful votes

I have some advice for you that I see hasn't been offered yet. How about trying this:

1.) You'll need to get an inexpensive Bluetooth OBD2 Scanner like the one in the link/pics included. They're about $30 and work great requiring nothing more than your phone or anybtanlet, laptop life , etc. with Bluetooth capability. I've used it with iPhones and Galaxy Tablets, & Multiple Android Phones, a few laptops, Etc. These are very universal if you get the right type: I prefer the VeePeak OBD2 BLE Scanner.

2.) It plugs into your OBD2 Port and connects via Bluetooth. The VeePeak BLE OD2 Scanner does all that most of us will ever need, I've used it in a professional setting too and as my go to OBD2 Diagnostic Scanner, & checked Codes on Countless Vehicles with my iPhone primarily. You can leave these devices plugged in at all times with no issues/problems.

3.) Data from all of the individual sensors is shown in a dashboard format, a graph, or just numerical values.

4.) Use the data logging feature and drive it around to get some readings from the electronics.

5.) You'll need to show this data to someone who relay knows how how to read and decipher it, in person is great but technology makes this easier. You can easily just Email this data to a professional who is a known expert. I can reccomemd one in particular who is the real deal.

6.) Custom Tuners and Progammmers at Performance Shops all around are invaluable with situations Ike this. You've got to get the information from your truck to someone who specialize in GM Trucks which would be easily found, like Nelson Performance who are the Best of the Best or Close in any case, BlackBear Performane, or a similar specialist. There are a few others, but Nelson Performance will send you a data logging unit to use and you can just hook it up & drive around to capture the data, remove the device they provide and send it back to them or in many cases you just email the data to them and things move forward from there. If you have Scanner or data logging capability through any device that's even better!

7.) Call these guys @ Nelson Performance, or a similar business that specializes in GM Vehicles, these guys are Master CERTIFIED with decades of experience. Check it out!

Theyll get serious power gains for you and better hasn't mileage too while keeping everything "safe" and on your improvements that GM can't authorize as they'd be violating by strict epa and other similar laws. Talk to these geaeheads, you'll be pleasantly surprised!

If if this helps in an in any way please click the GREEN "Helpful" Icon! A 5-10 word review or recommendation would be the best way to let me know I'm doing a good job. Follow me form for oat effect And real answers to common issues mechanically, at home, electronics, firearms related issues and upgrades, etc.

Im not affiliated with anyone, any public or private's or entity, or anything mentioned- anything I reccomemd or mention is based on personal experience.



Chevrolet... | 45 views | 0 helpful votes

Check the fuses in the engine compartment

2006 Chevrolet... | 57 views | 0 helpful votes

There's a website that has all this information about all this and manuals everything totally free there are many actually but I personally like few .. let me know if u need help

1997 Chevrolet... | 64 views | 0 helpful votes

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 .

Chevrolet... | 36 views | 0 helpful votes

It looks like your ECM is not compatible with your new engine (at least the throttle control module/sensors on the motor).

Chevrolet Cars &... | 51 views | 3 helpful votes

Knowing how it works is key , the ignition switch is a low voltage input to the BCM - body control module . When the BCM see's start input it sends a message over the serial data network to the PCM / ECM - engine computer . When the engine computer reads this message it will energize the crank relay sending B+ voltage to the S terminal on the starter solenoid ,there by cranking the engine . Taking to a qualified repair shop that has a factory or professional scan tool to read BCM DTC'S - diagnostic trouble codes is what you should do , before you cause more problems .

Circuit Description
Moving the ignition switch to the START position signals the body control module (BCM) through discrete inputs from the ignition transducer that engine crank has been requested. The BCM verifies that theft is not active and sends a serial data message to the engine control module (ECM)/powertrain control module (PCM) requesting engine start. The ECM/PCM receives a 12-volt signal from the park/neutral position (PNP) switch or clutch pedal start switch notifying that it is safe to start the engine. There is a splice on this circuit in the fuse block-underhood that supplies power for the starter relay coil. The starter relay coil control circuit is then grounded by the ECM/PCM closing the switch in the starter relay suppling 12 volts to the S-terminal of the starter. Ground is supplied through the engine block.

2006 Chevrolet... | 33 views | 0 helpful votes

It sounds as if the blower motor relay is stuck, on your vehicle the relay is part of the blower motor resistor, the resistor is behind the glove box.I hope this helps. Take care. If you have more questions for me about this vehicle or if you just want to say Hi! use testimonial. Thanks

Chevrolet... | 35 views | 1 helpful votes

I didn’t read all the way through. It sounds like you understand how a relay works. Are you getting a signal for the coil side of the relay? Should one from the ECM.

Chevrolet... | 29 views | 0 helpful votes

Wiring diagram is available in the back of a Hanes repair manual. Most Auto Zone stores or you can go to the dealership parts department and ask to look at one and they may print it for you.

Chevrolet Cars &... | 37 views | 0 helpful votes

Blower motor control processor is probably the problem . Manual or automatic climate control system ? Doesn't work in any speed ?

Chevrolet Malibu... | 34 views | 1 helpful votes

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