Anyone Ever flooded their engine

Reply Subscribe

Thread Tools

Search this Thread

Nov 4, 2008 | 11:31 AM

sciff5

Thread Starter

11 Second Club

iTrader: (1)

Joined: Jan 2006

Posts: 1,308

Likes: 4

Anyone Ever flooded their engine

Didnt think it was too common with EFI engines.. but mine might be flooded. It was running great and then went out to start it and it just cranked and cranked, I got no combustion. I pulled the plugs cranked it over and it didnt shoot any visible gas out. Put some oil in the cylinders to get a little better compression. Changed the oil (cause it smelled like gas), put the plugs back in and still nothing.

Going to check spark next

Nov 4, 2008 | 01:38 PM

5.3LJimmy

10 Second Club

iTrader: (10)

Joined: Jun 2004

Posts: 2,279

Likes: 1

From: Napoleonville, LA

If you floor the accelerator while cranking it puts the PCM in "flood clear" mode. I think this just reduces the amount of fuel sprayed while cranking. It is not a common problem though.

Nov 4, 2008 | 02:39 PM

sciff5

Thread Starter

11 Second Club

iTrader: (1)

Joined: Jan 2006

Posts: 1,308

Likes: 4

I'm going to spark next. If it has spark then I'll change the plugs.. If it doesnt have spark.. then its on to the longprocess of check the crank position sensor, checking my grounds, checking to see if the PCM is still good ect

Nov 4, 2008 | 03:56 PM

dlove

TECH Fanatic

iTrader: (23)

Joined: Sep 2005

Posts: 1,449

Likes: 1

From: Fort Worth

Quote:

Originally Posted by 5.3LJimmy

If you floor the accelerator while cranking it puts the PCM in "flood clear" mode. I think this just reduces the amount of fuel sprayed while cranking. It is not a common problem though.

clear flood, turns off the injectors.

Nov 4, 2008 | 09:48 PM

eallanboggs

TECH Addict

iTrader: (1)

Joined: Mar 2002

Posts: 2,080

Likes: 1

From: New Orleans

fuel pressure?

Nov 5, 2008 | 09:15 AM

sciff5

Thread Starter

11 Second Club

iTrader: (1)

Joined: Jan 2006

Posts: 1,308

Likes: 4

Quote:

Originally Posted by eallanboggs

fuel pressure?

Yep deff has fuel pressure but the PCM isnt priming the fuel pump like it used to so I'm running the fuel pump manually by switch so I think the pcm either isnt getting power or its dead.

Nov 5, 2008 | 11:21 AM

5_02ls1

11 Second Club

iTrader: (20)

Joined: Oct 2006

Posts: 3,131

Likes: 0

From: Virginia

i had the ect sensor go bad...my wife got out and couldnt get it to start back..i just held the throttle down and it fired up...scanned it with hpt and it was reading -39* all the time...put in a new sensor and it went back to normal...