1997 Ford E250 5.4 Triton V8, 130,000 miles
Hey all, van has been having issues recently, rough idle, stalling, obvious air/fuel mixture issues.
I was getting codes for 'too lean', '02 sensor switch', '02 sensor connection'.
After spending WAY too much money on new 02 sensors, and generally freaking the fuck out about what I was going to do, I started hearing obvious sounds of a vacuum leak (hissing, high pitched sounds) near the interior firewall.
I did a quick search on YT and found this video:
Appearently this is a VERY common issue with these engines.
If you pull you interior firewall access panel, look dead center at the top of the engine, and there should be a vacuum hose with a 90 degree connector going into the engine block, check to see if there is a hole/gap in that connector. I found the issue right away, and solved the problem immediately. ~$10 fix, just buy a new connector.
Hey all, van has been having issues recently, rough idle, stalling, obvious air/fuel mixture issues.
I was getting codes for 'too lean', '02 sensor switch', '02 sensor connection'.
After spending WAY too much money on new 02 sensors, and generally freaking the fuck out about what I was going to do, I started hearing obvious sounds of a vacuum leak (hissing, high pitched sounds) near the interior firewall.
I did a quick search on YT and found this video:
Appearently this is a VERY common issue with these engines.
If you pull you interior firewall access panel, look dead center at the top of the engine, and there should be a vacuum hose with a 90 degree connector going into the engine block, check to see if there is a hole/gap in that connector. I found the issue right away, and solved the problem immediately. ~$10 fix, just buy a new connector.
