2001 Chevy Suburban fuel pump primary

Hello -

To better assist you is your model a C1500, C2500 or K1500 or K2500? Also please tell me your engine size in liter.

Also please tell me the 8th digit of your VIN.

Hello -

Thanks for the info.........

Okay....... First since there are so many codes I will need the code number. Can you get that for me? If you had to borrow the scanner then please go to Auto Zone (AZ) or O'Reilly's (OR) and use their tool check out program and get the code scanner. Check your codes, if you find something and you don't get it fixed and need to get back with us, please make sure you tell us exactly what the code was, number and all. Example, if the code was E0568 O2 Sensor bad. Then make sure you give us all of that. Then make sure you give us all of that. While there for FREE also they can bring their tester out and check your battery and alternator.

Let's check the electrical system out while there and it is free.

Next, are you sure all the plugs are in tight and the plug wires connected good and tight?

What plugs did you use? Many times it is best to use the OEM ones.

Next, take a spray bottle of water and start the engine. Then spray a mist of water all over the plug wires and see how the engine reacts.

Are you sure you have the wires in the correct order and again, they are making good contact?

What type of plug wires did you use?

Did you look at your coils really good for any damage and are those wires seated properly.

Does it idle rough in just Park, or also in drive and neutral