TRACTOR PARTS Allis Chalmers Case & David Brown Farmall & International Ferguson Ford & New Holland John Deere Massey Ferguson Massey Harris Minneapolis Moline Oliver & Cockshutt Kubota / Yanmar

TRACTOR MANUALS

Allis Chalmers	Case	Farmall IH	Ford 8N,9N,2N	Ford
Ferguson	John Deere	Massey Ferguson	Minn. Moline	Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Tool Talk Discussion Forum

2004 Grand Caravan OBD Code

Welcome Guest, Log in or Register

Author

Jim in NC

01-13-2008 05:17:36

Report to Moderator

Its puter is giving me a P0440 which refers me to the evaporative emission system. It could anything from a loose gas cap, cracked hose to evap. cannister, bad soleniod, or a vacuum leak at engine. I spent time yesterday checking hoses and removing and replacing the gas cap. Everything looks ok. Has anyone here had experience with this problem? Suggestions are welcome. Thanks.

[Log in to Reply] [No Email]

Jake 2

01-13-2008 17:13:00

Report to Moderator

Re: 2004 Grand Caravan OBD Code in reply to Jim in NC, 01-13-2008 05:17:36

Has anyone refueled the car with the motor running OR with the ignition switch on. The computer gets a little touchy sometimes and, even though the motor isn't running, the computer thinks it's an evaporative leak.

[Log in to Reply] [No Email]

Jim in NC

01-13-2008 19:34:05

Report to Moderator

Re: 2004 Grand Caravan OBD Code in reply to Jake 2, 01-13-2008 17:13:00

Sometimes when I put fuel in it, I will turn the key to the ACC position so the radio will be on, but not while running.

[Log in to Reply] [No Email]

bradk

01-13-2008 13:04:15

Report to Moderator

Re: 2004 Grand Caravan OBD Code in reply to Jim in NC, 01-13-2008 05:17:36

Look under van at LH side under front floor board.The EVAP leak detection pump is at LH rear of engine cradle and the canister purge valve and canister is slightly behind it.

Look closely at the rubber hoses(about the size of heater hose)for cracking.I've found these to be split.Cheap rubber. ~brad

[Log in to Reply] [No Email]

Jim in NC

01-13-2008 14:31:41

Report to Moderator

Re: 2004 Grand Caravan OBD Code in reply to bradk, 01-13-2008 13:04:15

Thanks, Brad. I located those parts yesterday and looked at them a bit. I will have to check later on a warmer day since it will be easier to work with the rubber and plastic parts. The hoses looked pretty good to me, as much as I could see of them.

What is odd is that I just had it inspected about 3 days before the engine light came on. That has not been indicative of my luck lately

[Log in to Reply] [No Email]

RayP(MI)

01-13-2008 06:59:06

Report to Moderator

Re: 2004 Grand Caravan OBD Code in reply to Jim in NC, 01-13-2008 05:17:36

You"ve about covered the basics. A leak in there somewhere! I had the same problem on a Chevy Blazer when I bought it from a used car daeler. Fortunately, they stood behind it, because they replaced several parts before they got it solved. There are solonoid valves on the engine, and at fuel tank. Both replaced. Also did a lot of inspection of lines, and had to take car to specialty shop where they did a "smoke" test. Apparently they put an attachment on the car which fills the system with smoke under some light pressure, and where the smoke leaks out..... Was the solonoid valve at the tank, and I got the old one back - every test I could do on it said that it was OK - but seemed to solve the problem.

[Log in to Reply] [No Email]

jdjack

01-13-2008 06:15:51

Report to Moderator

Re: 2004 Grand Caravan OBD Code in reply to Jim in NC, 01-13-2008 05:17:36

I use to work on gm cars until 2 years ago. P044o is evap system code. Thinkingthat it is a small leak (not sure)
If you replaced the gas cap I hope you got one from mopar dealer.
Have seen alot af aftermarket new ones fail.
They could be vented. It should have a none vented cap.

[Log in to Reply] [No Email]

jdjack

01-13-2008 06:15:46

Report to Moderator

Re: 2004 Grand Caravan OBD Code in reply to Jim in NC, 01-13-2008 05:17:36

[Log in to Reply] [No Email]

Jim in NC

01-13-2008 06:35:03

Report to Moderator

Re: 2004 Grand Caravan OBD Code in reply to jdjack, 01-13-2008 06:15:46

I should have stated that I have not replaced anything. I believe it has the original gas cap on it.

[Log in to Reply] [No Email]

[Options] [Printer Friendly] [Posting Help] [Return to Forum] [Log in to Reply]

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home | Forums

Copyright © 1997-2023 Yesterday's Tractor Co.
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy