Failed Emissions

hkj · 07-28-2007, 03:31 PM

Here is the emissions report information maybe this will hepl you all narrow this down. Also when I start the truck it doesn't seem to fire up sharp and strong like I think it should. It's more like a lazy fire up but it does start after a pump or two of the pedal. The truck has 61, 700 mile origanal miles on it.

15MPH Test
HC ppm Limit 155 Reading 236 Fail
CO% Limit 1.31 Readind 2.74 Fail

25MPH Test
HC ppm Limit 1.51 Reading 219 Fail
CO% Limit 1.68 Reading 2.05 Fail

fifthcrunch · 04-24-2008, 06:10 PM

failing emissions is rugged. can't change something and test yourself. when you say it doesn't fire up strong, could be a stuck choke. but i would bet there are some basic tune up issues. check compression. replace plugs cap rotor. check plug wires (you raise the hood at night and look for sparks off the wires) check timing. replace air filter. clean the piece that crankcase vapor goes to air cleaner. replace pcv valve. if it has o2 sensor, test it. may be bad.

07-28-2007, 03:31 PM	#1 (permalink)
hkj Junior Member Join Date: Jul 2007 Posts: 2	Failed Emissions Here is the emissions report information maybe this will hepl you all narrow this down. Also when I start the truck it doesn't seem to fire up sharp and strong like I think it should. It's more like a lazy fire up but it does start after a pump or two of the pedal. The truck has 61, 700 mile origanal miles on it. 15MPH Test HC ppm Limit 155 Reading 236 Fail CO% Limit 1.31 Readind 2.74 Fail 25MPH Test HC ppm Limit 1.51 Reading 219 Fail CO% Limit 1.68 Reading 2.05 Fail

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Failed Emissions	hkj	General Technical Questions	1	04-24-2008 06:10 PM

04-24-2008, 06:10 PM	#2 (permalink)
fifthcrunch Junior Member Join Date: Apr 2008 Posts: 7	failing emissions is rugged. can't change something and test yourself. when you say it doesn't fire up strong, could be a stuck choke. but i would bet there are some basic tune up issues. check compression. replace plugs cap rotor. check plug wires (you raise the hood at night and look for sparks off the wires) check timing. replace air filter. clean the piece that crankcase vapor goes to air cleaner. replace pcv valve. if it has o2 sensor, test it. may be bad.