Carbon monoxide emissions

Asked by Sep 19, 2016 at 11:53 AM about the 1994 Ford E-150 STD Econoline

Question type: General

I have a 1994 ford 4.9l in line six efi van the.
Aloud limit at emissions for carbon mo
oxide is 25. My van had 27. What can I do to
get it to pass?

1 Answer

86,495

Two points above legal limit sounds like it needs a really good tune up, plugs, wires, cap, rotor, all the filters and the PCV valve, after that is done then recheck the base timing, disconnect the spout connector and check then add 2 degrees to the base timing, shut down and reconnect the spout connector. Now run a can of SeaFoam in the fuel tank, on next fill up use Chevron fuel, then retest. Or if you don't have time to run SeaFoam then have the injectors professionally cleaned and then put in a can of Techron and have it rechecked. If the engine is in good shape then it should pass emissions.

Your Answer

Add photo

Related Questions

Search Ford E-150 Questions

Ford E-150 Experts

#1 FordNut
FordNut
Reputation 630
#2 Tracy Hooks
Tracy Hooks
Reputation 490
#3 kbro
kbro
Reputation 420
View All

Related Models For Sale

Used Ford F-150
2,884 Great Deals out of 212,656 listings starting at $1,000
Used Ford E-350
228 listings starting at $495
Used Dodge Ram 1500
535 Great Deals out of 12,998 listings starting at $2,199
Used GMC Sierra 1500
931 Great Deals out of 62,271 listings starting at $1,395
Used Ford F-250
520 listings starting at $3,500
Used Toyota Tacoma
627 Great Deals out of 35,082 listings starting at $2,155
Used Ford F-150 SVT Lightning
7 Great Deals out of 139 listings starting at $7,900