My Truck Wont Start.
#31
Senior Member
#33
Senior Member
What color is the bottom of the plug? I would pull the rest and turn it over to get all that gas out of there
http://ngksparkplugs.com/tech_suppor...qs/faqread.asp
http://ngksparkplugs.com/tech_suppor...qs/faqread.asp
#34
I
Thread Starter
What color is the bottom of the plug? I would pull the rest and turn it over to get all that gas out of there
http://ngksparkplugs.com/tech_suppor...qs/faqread.asp
#35
I
Thread Starter
After some more research I found out they are. The green one is the fuel pump relay and the brown one is for the PCM. When I turn on the key I can hear my fuel pump run for a couple seconds as usual. Would that rule out a bad fuel pump relay? Also, what is a symptom of a bad PCM relay?
#36
Senior Member
After some more research I found out they are. The green one is the fuel pump relay and the brown one is for the PCM. When I turn on the key I can hear my fuel pump run for a couple seconds as usual. Would that rule out a bad fuel pump relay? Also, what is a symptom of a bad PCM relay?
#38
Hi-Rev Motorsports
this could be something as simple as not getting vacuum to the MAP sensor while cranking. you need to make sure you got everything plugged back in and none of the hoses are broken.
when you checked for spark what color was it? it needs to be a Blue Snappy spark.
at this point I'd check for injector pulses. if you have fuel and spark it's got Air so it should start. if you unhooked the main injector harness make sure you plugged it back in fully and it snapped.
you can check injector pulses with a NOID light or rig one with an LED bulb.
quick test would be to open the throttle and spray some gumout carb cleaner in there (2 second shot) and then crank.... does it fire then?
EDIT: you do know #1 cylinder is on the passenger side first cylinder right? a lot get the drivers side on a Ford confused....
when you checked for spark what color was it? it needs to be a Blue Snappy spark.
at this point I'd check for injector pulses. if you have fuel and spark it's got Air so it should start. if you unhooked the main injector harness make sure you plugged it back in fully and it snapped.
you can check injector pulses with a NOID light or rig one with an LED bulb.
quick test would be to open the throttle and spray some gumout carb cleaner in there (2 second shot) and then crank.... does it fire then?
EDIT: you do know #1 cylinder is on the passenger side first cylinder right? a lot get the drivers side on a Ford confused....
#39
I
Thread Starter
this could be something as simple as not getting vacuum to the MAP sensor while cranking. you need to make sure you got everything plugged back in and none of the hoses are broken.
when you checked for spark what color was it? it needs to be a Blue Snappy spark.
at this point I'd check for injector pulses. if you have fuel and spark it's got Air so it should start. if you unhooked the main injector harness make sure you plugged it back in fully and it snapped.
you can check injector pulses with a NOID light or rig one with an LED bulb.
quick test would be to open the throttle and spray some gumout carb cleaner in there (2 second shot) and then crank.... does it fire then?
EDIT: you do know #1 cylinder is on the passenger side first cylinder right? a lot get the drivers side on a Ford confused....
when you checked for spark what color was it? it needs to be a Blue Snappy spark.
at this point I'd check for injector pulses. if you have fuel and spark it's got Air so it should start. if you unhooked the main injector harness make sure you plugged it back in fully and it snapped.
you can check injector pulses with a NOID light or rig one with an LED bulb.
quick test would be to open the throttle and spray some gumout carb cleaner in there (2 second shot) and then crank.... does it fire then?
EDIT: you do know #1 cylinder is on the passenger side first cylinder right? a lot get the drivers side on a Ford confused....
#40
I
Thread Starter
Also I just tried switching the relays, and unfortunately you can't. The connections look the same but the plug is made so they'll only connect to one or the other