1990 Ford F150 I6 300 EFI HELP
#1
1990 Ford F150 I6 300 EFI HELP
Hello everyone,
was wondering if anyone knows what to do, a few years ago i took out a I6 300 to re do the seals and head gasket, When i removed it it ran like new just leaked a ton of oil
I got it back in and fired it up. It seems to be running supper rich, as far as i know all of the vacume lines are hooked up.
It has
1. new spark plugs, router, and wires
2. new o2 sensor (broke when removed)
Thats about it,
i thought that the rich running would be the o2, its a lot better now but not perfect yet
if i hit the gas pedel it will rev up, almost sounds like a miss but it isnt (when running and i pull the plugs all cylindars are fireing)
any idea what to look for
Also the fuel pressure regulator vacume hose goes right to the intake right?
Thank you so much everyone
Dave
was wondering if anyone knows what to do, a few years ago i took out a I6 300 to re do the seals and head gasket, When i removed it it ran like new just leaked a ton of oil
I got it back in and fired it up. It seems to be running supper rich, as far as i know all of the vacume lines are hooked up.
It has
1. new spark plugs, router, and wires
2. new o2 sensor (broke when removed)
Thats about it,
i thought that the rich running would be the o2, its a lot better now but not perfect yet
if i hit the gas pedel it will rev up, almost sounds like a miss but it isnt (when running and i pull the plugs all cylindars are fireing)
any idea what to look for
Also the fuel pressure regulator vacume hose goes right to the intake right?
Thank you so much everyone
Dave
#3
Hi dave2500,
It looks like your post might be a little vague for us to offer a great deal of assistance.
I understand the issue is that your engine seems to be running rich, but what's leading you to that diagnosis?
I'd like to see some more description of the symptoms, the problems associated them, and the troubleshooting tests and values done/found so far.
A couple of beginning notes:
An engine idling is not the same as an engine 'revved up', and I myself have been the owner of a vehicle that idled fine, but did not tolerate being pushed to higher speeds or RPM's. In my years of playing Ford owner (part mechanic!) i've found the ignition system to be an interesting beast to tame, and should never be thought of as stationary; it's different at each stage of acceleration, cruise, deceleration, and load.
It looks like your post might be a little vague for us to offer a great deal of assistance.
I understand the issue is that your engine seems to be running rich, but what's leading you to that diagnosis?
I'd like to see some more description of the symptoms, the problems associated them, and the troubleshooting tests and values done/found so far.
A couple of beginning notes:
An engine idling is not the same as an engine 'revved up', and I myself have been the owner of a vehicle that idled fine, but did not tolerate being pushed to higher speeds or RPM's. In my years of playing Ford owner (part mechanic!) i've found the ignition system to be an interesting beast to tame, and should never be thought of as stationary; it's different at each stage of acceleration, cruise, deceleration, and load.
#5
#6
Hello,
Thanks for the answers
It is not showing any CEL light on,
I know its running rich because it smaokes black like it is chocked.
If i pull a vacume line it runs better,
i also drained the gas and added new gas (runs a little better)
not really sure
would a leaking exhaust manifold cause this
Thank again
Thanks for the answers
It is not showing any CEL light on,
I know its running rich because it smaokes black like it is chocked.
If i pull a vacume line it runs better,
i also drained the gas and added new gas (runs a little better)
not really sure
would a leaking exhaust manifold cause this
Thank again
#7
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#8
#9
More information, please
Hello,
Thanks for the answers
It is not showing any CEL light on,
I know its running rich because it smaokes black like it is chocked.
If i pull a vacume line it runs better,
i also drained the gas and added new gas (runs a little better)
not really sure
would a leaking exhaust manifold cause this
Thank again
Thanks for the answers
It is not showing any CEL light on,
I know its running rich because it smaokes black like it is chocked.
If i pull a vacume line it runs better,
i also drained the gas and added new gas (runs a little better)
not really sure
would a leaking exhaust manifold cause this
Thank again
What do you mean by 'chocked'?
When we read your posts, we have to presume you're including all the information you have, and that anything not mentioned is working correctly. So when you have a leaking exhaust manifold, but don't mention it, we end up doing a lot of back pedaling, which leads to frustration from those of us trying to help you.
So, please do include as much info as you have so we can help you as best as we can.
#10
When you make a post, please be sure to include details about your steps. For example, which vacuum line did you pull?
What do you mean by 'chocked'?
When we read your posts, we have to presume you're including all the information you have, and that anything not mentioned is working correctly. So when you have a leaking exhaust manifold, but don't mention it, we end up doing a lot of back pedaling, which leads to frustration from those of us trying to help you.
So, please do include as much info as you have so we can help you as best as we can.
What do you mean by 'chocked'?
When we read your posts, we have to presume you're including all the information you have, and that anything not mentioned is working correctly. So when you have a leaking exhaust manifold, but don't mention it, we end up doing a lot of back pedaling, which leads to frustration from those of us trying to help you.
So, please do include as much info as you have so we can help you as best as we can.
i have a video,
i dont know if anyone would beable to tell what might be wrong
Their is no CEL on which i find kinda starnge seeing how bad it is running
I thightened up the exhaust and when i started it today it is running worse than ever (hardly runs)
You can see it build NO RPM
Im getting more lost by the day,
The conector that i grab in the video , im not to sure where it goes/what it does, could that be it
the exhaust is connected and their is not a aftermarket cam (kinda sounds like a huage cam lol)
thanks everyone
Video
https://www.youtube.com/watch?v=Ipcw...ature=youtu.be
#11
That looks to me like a plugged converter....
#12
Ruh roh!
First, kudos on the video! If a picture is worth a thousand words, a video is worth 24-32K words per second
Second, I think you have a plugged cat.
Put your hand over the tailpipe, not touching the pipe, just so you can feel the pressure. Now, once you get a "reading" on the exhaust pressure with your handy gauge (see what I did there?) go get a reading from a similar engine that runs well.
You can also bang on the cat with your fist (check for big rust spots first!!) and listen for the crinkle-tinkle of broken stuff inside, which will clog up the innards.
If you have a way of doing so, you can disconnect the exhaust anywhere between the engine and the cat, and notice the difference in running.
Based on your video, you either have a clogged exhaust (I would suspect the cat first in an exhaust clog), or a bad timing issue.
Second, I think you have a plugged cat.
Put your hand over the tailpipe, not touching the pipe, just so you can feel the pressure. Now, once you get a "reading" on the exhaust pressure with your handy gauge (see what I did there?) go get a reading from a similar engine that runs well.
You can also bang on the cat with your fist (check for big rust spots first!!) and listen for the crinkle-tinkle of broken stuff inside, which will clog up the innards.
If you have a way of doing so, you can disconnect the exhaust anywhere between the engine and the cat, and notice the difference in running.
Based on your video, you either have a clogged exhaust (I would suspect the cat first in an exhaust clog), or a bad timing issue.
#14
I got the codes,
I have code 67
and code 85
I am missing that selanoid that goes on the vacume lines off the throttle body, could that b e causing it to run like this?
The timing should be close. i set it with the engine running to where it runs the best,
the firing order is right
it has a new cap and router
Could code 85 be causing all of this?
#15
Not sure how to test the fuel pressure regulator,
the timing is very close if not dead on
firing order is good
and the fuel pressure regulator vacume line is pluged directly into the vacume port (tree thing on intake) not positive if thats the right spot or not
Thanks