Question about 1988 Ford F 250
My 460 will be running fine, then start to cut out and stall. I've replaced 2 of 3 fuel pumps. It also has a fresh tune up, any ideas on what would be causing it to stall and die? about an hour later it will start again.
On older, carbureted engines, cold stalling (and hard starting) is most
often due to an automatic choke that is sticking, misadjusted or
broken. Cleaning the choke mechanism with aerosol carburetor cleaner
may free up the choke allowing it to work properly again. If the choke
housing as an electrical heating element, the element may not be
receiving voltage when the key is on, or the element may have burned
out (check resistance with an ohmmeter).
Other causes of stalling with a carburetor include an idle speed adjustment screw that is set too low (turn screw to increase idle speed rpm). The engine may stall if the idle fuel mixture screw(s) are not adjusted correctly or the idle mixture port(s) are dirty or clogged with fuel varnish deposits (clean the carburetor and readjust the idle mixture screws for smoothest idle). Stalling can also occur is there are vacuum leaks in the carburetor, under the carburetor (bad base gasket), or any vacuum hose connections to the carburetor or intake manifold
Posted on Jun 23, 2008
All 1988 460 automotive fords were fuel injected. Carb Solutions do not apply.
Use FI troubleshooting techniques. Does it fail due to fuel or voltage?
Jumper the fuel pump pin in the computer access connector and verify pressure when the thing stalls out.
The computer will turn off the fuel pumps when the engine is not running unless in the start position or the fp pin is jumpered.
Old totally electric engines cost more to repair than they are worth unless you do it yourself!!!!!!!!!!!!!!!!!!!!!!!
Posted on Nov 14, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Nov 07, 2014 | 1991 Dodge Ramcharger
May 01, 2014 | Cars & Trucks
May 13, 2013 | 1996 Ford Thunderbird LX
Dec 31, 2011 | 1995 Chevrolet Blazer
Feb 05, 2011 | 2000 Buick Regal
Sep 18, 2010 | 1993 Chevrolet Astro
Mar 29, 2009 | 2004 Ford Explorer
Jan 16, 2009 | 1996 Saturn SL
Jul 25, 2008 | 1999 Ford Windstar
Jul 08, 2008 | 2000 Ford F350 Super Duty Super Cab
1,157 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: