How to troubleshoot the PCM in a Chevy truck?

How to troubleshoot the PCM in a Chevy truck?

If your PCM fails your Chevy truck can experience a wide range of problems. The only way to diagnose a faulty PCM is to use a special tool, called an on-board diagnostic scan tool, or “OBD” scan tool. These tools are available from most auto parts stores. Locate the OBD port in your Chevy truck.

What’s the difference between a P30 and P37 chassis?

The “P30” term is simply too generic to help when specifics are needed. If the 5ththru 7 positions in your VIN number are “P37”, then you have the motorhome version of the chassis. Actually, it is the ‘7’ that tells us we have the motorhome version of the chassis. (See Appendix C for the VIN breakdown.)

Is the Class A motorhome built on a P30 chassis?

Your Class A motorhome is NOT built on a “P30 Chassis”. The correct general term is a “Motorhome P Chassis”. The P Chassis was also used for what is referred to as a Commercial (Forward Control) truck.

Is the G10 chassis the same as the P30 chassis?

The same chassis series has been used for G10, G20, G30, P20, P30, and Motorhomes under a ’32 – 52′ designation. What’s more, the alignment specs are different for the motorhome chassis because they were made slightly different.

What kind of engine does a GMC P30 have?

1999 GMC P30 CUES TV Inspection Vehicle Year: 1999 Make: GMC Model: P30 Engine: V-8 5.7L Gas Transmission: Automatic 74,468 Miles TIRES: 11×22.5 REAR (APPROX. 100% TREAD) 11×22.5 FRONT 100… See More Details Enter search information and click the Search button below. Use the TAB key to move between fields.

How big is a 1996 Chevy P30 compressor Van?

Motor: GM 5.7L V8 gas throttle body Transmission: automatic Suspension: spring 7,900 lbs Tires: LT235/85R16 Rims: 8 lug Length: 23’9″ Width: 7’5″ Height: 9’8″ Odometer Reading: 393,574 Whe… See More Details Ready to work! Title in hand 1996 CHEVY P-30 COMPRESSOR VAN 5 Speed, Diesel, Air Compressor, 360 Degree Work Lights, Priced to Sell or Trade.

What’s the price of a 1998 Chevy P30?

STOCK #H110, FOR SALE OR RENT TO OWN, Rent To Own $1127/Month, Nationwide Delivery Available, 1998 Chevrolet P30 Passenger Bus, GM 7.4L 454 Gas Engine, Full Size Van, 4 Speed Automatic GM Trans… See More Details

Your Class A motorhome is NOT built on a “P30 Chassis”. The correct general term is a “Motorhome P Chassis”. The P Chassis was also used for what is referred to as a Commercial (Forward Control) truck.

If your PCM fails your Chevy truck can experience a wide range of problems. The only way to diagnose a faulty PCM is to use a special tool, called an on-board diagnostic scan tool, or “OBD” scan tool. These tools are available from most auto parts stores. Locate the OBD port in your Chevy truck.

Can a bad ECM cause a car to be undrivable?

When the ECM has any issues, it can cause all sorts of problems with the vehicle, and in some cases even render it undrivable. A bad or failing ECM may produce any of the following 5 symptoms to alert the driver of a potential problem.

What are the symptoms of a bad engine control module?

1. Check Engine Light Turns On 2. Engine Stalling or Misfiring 3. Engine Performance Issues 4. Car Not Starting 5. Poor Fuel Economy The engine control module (ECM), also commonly referred to as the engine control unit (ECU) or powertrain control module (PCM), is one of the most important components found on virtually all modern vehicles.

What causes a lost ECM / PCM ” a ” code?

A bent or pushed out pin terminal in one of the connectors or a loose ground to the computer will cause such a code. Jumping a dead battery and inadvertently reversing the polarity momentarily will destroy the computer.

How can I find out if my PCM is faulty?

The only way to diagnose a faulty PCM is to use a special tool, called an on-board diagnostic scan tool, or “OBD” scan tool. These tools are available from most auto parts stores.

What to do if your ECM has failed?

If the problem turns out to be a failed ECM or PCM, very likely it will need programming before the vehicle will start. Consult the service manual for a comprehensive description of the additional code relating to the offending module and its location. Look at the wiring diagram and locate the CAN bus for this module and its location.

What causes no crank and u0100 lost communication with ECM?

All the trouble was caused by a mouse chewing through some wires under the battery and fuse box. I was just going to say to check the fuse box under the hood. Mine has rattled itself loose twice. Bolted it back down after inspecting for damage and everything went back to normal.

How to turn on security light without starting engine?

Turn key to the “ON” position without starting the engine. Security light should turn on and stay on. Turn key to the “ON” position without starting the engine. Security light should turn on and stay on. Turn key to the “ON” position without starting the engine. Security light should turn on and stay on. Turn key to the “OFF” position.