service engine soon lite
06-16-2013, 06:51 PM
#2
6th Gear Member
Join Date: Feb 2007
Location: South FL
Posts: 8,540
No, but it is VERY common. The A/C drips right there (bad design form Ford). They crack all the time.
Two options:
1) Pull it off, and replace it with one from a junkyard.
2) Pull it off, have it welded and put it back on.
Whatever you do, don't waste money on aftermarket headers - they don't do a thing for performance and will cost you way too much to be worth the trouble.
Two options:
1) Pull it off, and replace it with one from a junkyard.
2) Pull it off, have it welded and put it back on.
Whatever you do, don't waste money on aftermarket headers - they don't do a thing for performance and will cost you way too much to be worth the trouble.
06-17-2013, 01:01 AM
#3
4th Gear Member
Join Date: Nov 2006
Location: CA
Posts: 1,670
While LilRoush is correct in what he says, I wouldn’t do any of it before getting the codes read to find out what was causing the CEL to come on. Most auto parts stores will read the codes for free (call ahead of course). Make sure you get the codes, not just the description. Then do some googling & searching on this forum to see what the cause could be and possible fixes. Don’t guess. Fix it right the first time.
06-17-2013, 06:12 PM
#4
6th Gear Member
Join Date: Feb 2007
Location: South FL
Posts: 8,540
If he has a cracked manifold, why would he wait to see if it's wrong? Am I missing something?
If exhaust gas leaks out prior to being read by the O2 sensor, it's going to read a lean condition, which is going to dump in more fuel (actually creating a very rich condition), and trigger the light.
Fix the crack, mpg will improve and the Air/Fuel ratio will correct itself.
If exhaust gas leaks out prior to being read by the O2 sensor, it's going to read a lean condition, which is going to dump in more fuel (actually creating a very rich condition), and trigger the light.
Fix the crack, mpg will improve and the Air/Fuel ratio will correct itself.
06-18-2013, 03:36 AM
#5
4th Gear Member
Join Date: Nov 2006
Location: CA
Posts: 1,670
Your assuming that the crack is the source of the CEL. From the OP’s first post, the light just came on but he already knew about a crack in the manifold. So the crack has been there for at least a little while. So the crack may not be big enough to cause enough air to get into the exhaust to mess up the air/fuel mixture in order to trigger a (false) lean code. Not to mention there could also be more then one code.
So instead of guessing that the CEL is from the crack, get the codes read and fix whatever codes come up.
So instead of guessing that the CEL is from the crack, get the codes read and fix whatever codes come up.
06-20-2013, 03:58 PM
#7
6th Gear Member
Join Date: Feb 2007
Location: South FL
Posts: 8,540
Your assuming that the crack is the source of the CEL. From the OP’s first post, the light just came on but he already knew about a crack in the manifold. So the crack has been there for at least a little while. So the crack may not be big enough to cause enough air to get into the exhaust to mess up the air/fuel mixture in order to trigger a (false) lean code. Not to mention there could also be more then one code.
So instead of guessing that the CEL is from the crack, get the codes read and fix whatever codes come up.
So instead of guessing that the CEL is from the crack, get the codes read and fix whatever codes come up.
Good point. I read it and assumed he was meaning the code was from the crack.
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