03 suburban problem

Reply Subscribe

Thread Tools

Search this Thread

Apr 1, 2022 | 1:50 PM

Winonap

Thread Starter

CF Beginner

Joined: Apr 2022

Posts: 3

Likes: 0

From: Florida

03 suburban problem

My 03 suddenly started running bad and would die if you stopped but would crank back up and go so we cleaned out tank and got a new fuel pump and fuel pump relay now it will turn over but won’t crank.I need help

Apr 1, 2022 | 2:26 PM

oldchevy

CF Monarch

Joined: Apr 2012

Posts: 6,214

Likes: 436

From: Miami, FL.

Welcome from Florida. Is the check engine light on? If it is, what are the codes?

Apr 3, 2022 | 9:54 AM

pruitt09@att.net

CF Beginner

Joined: Mar 2022

Posts: 3

Likes: 0

Have you replaced the fuel pressure regulator (Simple fix), the diaphragm goes bad in these after a few years, I have replace mine in my 2001 suburban twice now in the past 21 years.

Apr 3, 2022 | 11:57 AM

kevinkpk

CF Monarch

Joined: Jul 2011

Posts: 5,920

Likes: 139

From: kevinkpk

Quote:

Originally Posted by pruitt09@att.net

Have you replaced the fuel pressure regulator (Simple fix), the diaphragm goes bad in these after a few years, I have replace mine in my 2001 suburban twice now in the past 21 years.

Pull the vacuum line from it, if it has gas, replace it. To the OP, what is the idle rpm's?