Fuel Pumps
GMC Sonoma
Jeep Grand Cherokee Laredo
Jeep Grand Cherokee Limited

Why would you be getting code P0300 on a 2001 GMC Sonoma if you already replaced the coil for cylinders 1 and 4?


Top Answer
User Avatar
Wiki User
2009-08-22 03:54:46
2009-08-22 03:54:46

How is the ignition module? PO300 is a multiple misfire code. It can have many different causes. Coil being one of them. The 4.3 motor that you probably have is susceptible to the (sometinmes called: octapus or spider) fuel injection unit that set on top on the engine. I believe there was also a poppit valve problem on them. Do rule out basics like spark plug or ignition wire or poor connection at the coil from corrosion. you have to reset the computer and see if it still comes on then check the injectors


Related Questions

User Avatar

see where the wiring loses power. trace it back, starting at the pump, and go all the way back to the relay

User Avatar

The pad on the clutch is getting low

User Avatar

check your distributor some of your cylinders are not firing or just get a new truck

User Avatar

The starter on a 1998 GMC Sonoma is replaced by disconnecting the battery, removing the outer cover, and unbolting it from the engine. The wiring harness can then be disconnected, the starter removed, and a new one put in place.

User Avatar

In order to unlock the radio of a 2000 Sonoma, first start the car. Then turn on the radio. Using the minute and hour buttons, enter the code that you already have. Then, press the AM/FM button.

Copyright © 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.