Bitten by p0174. Need help
Thread Starter
|
Freshman User
Joined: Aug 2012
Posts: 37
Likes: 0
Got her all back together. Took about 5 hours to drain the oil. It oozed out. After it started looking better, we removed all spark plugs, put oil in it, removed oil filter, and turned it over. Valve covers and intake was off still. Neat to see the lifters and arms moving in sequence. That oil/water junk just poured out of the filter housing and brake cleaner shot out of the spark plug holes. Bolted everything back up and cranked her over. Purrs like a kitten. Smoked a little then stopped. Idles better than ever. Better response, even sounds better. Haven't driven it yet. Gonna start changing oil this morning. Gonna Change it 3 more times.
What do y'all think about motor medic motor flush?
I thought about putting a qt of transmission fluid in it then change it. Any ideas?
What do y'all think about motor medic motor flush?
I thought about putting a qt of transmission fluid in it then change it. Any ideas?
Fleet Mechanic
Joined: Aug 2008
Posts: 1,446
Likes: 9
From: NE Iowa JD Country
Got her all back together. Took about 5 hours to drain the oil. It oozed out. After it started looking better, we removed all spark plugs, put oil in it, removed oil filter, and turned it over. Valve covers and intake was off still. Neat to see the lifters and arms moving in sequence. That oil/water junk just poured out of the filter housing and brake cleaner shot out of the spark plug holes. Bolted everything back up and cranked her over. Purrs like a kitten. Smoked a little then stopped. Idles better than ever. Better response, even sounds better. Haven't driven it yet. Gonna start changing oil this morning. Gonna Change it 3 more times.
What do y'all think about motor medic motor flush?
I thought about putting a qt of transmission fluid in it then change it. Any ideas?
What do y'all think about motor medic motor flush?
I thought about putting a qt of transmission fluid in it then change it. Any ideas?
glad to see that it is running better
Thread Starter
|
Freshman User
Joined: Aug 2012
Posts: 37
Likes: 0
All is well with the truck, but the code came back again. P0174. 
I did replace the O2 Sensor Bank 2 System 1, cleared the code, but it came back. The MAF looks good and has been cleaned. All the vacuum lines looked good when they were off. The EGR hose that connects by the brake booster to the intake looked a bit rough, but noticed no holes. Sprayed with WD-40, carb cleaner, no change in motor rpms. I'm at a loss.
I did replace the O2 Sensor Bank 2 System 1, cleared the code, but it came back. The MAF looks good and has been cleaned. All the vacuum lines looked good when they were off. The EGR hose that connects by the brake booster to the intake looked a bit rough, but noticed no holes. Sprayed with WD-40, carb cleaner, no change in motor rpms. I'm at a loss.
Fleet Mechanic
Joined: Aug 2008
Posts: 1,446
Likes: 9
From: NE Iowa JD Country
All is well with the truck, but the code came back again. P0174.
I did replace the O2 Sensor Bank 2 System 1, cleared the code, but it came back. The MAF looks good and has been cleaned. All the vacuum lines looked good when they were off. The EGR hose that connects by the brake booster to the intake looked a bit rough, but noticed no holes. Sprayed with WD-40, carb cleaner, no change in motor rpms. I'm at a loss.
I did replace the O2 Sensor Bank 2 System 1, cleared the code, but it came back. The MAF looks good and has been cleaned. All the vacuum lines looked good when they were off. The EGR hose that connects by the brake booster to the intake looked a bit rough, but noticed no holes. Sprayed with WD-40, carb cleaner, no change in motor rpms. I'm at a loss.
Lead Driver
Joined: Sep 2006
Posts: 7,907
Likes: 143
The 174 code sets when the fuel table goes rich 'out of limits' trying to 'correct' for a Lean condition the OX sensor detects. It's not the sensor. The sensor only detects the lean condition and causes the fuel table to go rich letting you know there is a problem. It's the only way the system has to do this..
You need to use a Scanner to 'watch' the short term fuel Trim for a change when you use a flammable spray able to pass through the air leak while looking for the source. Otherwise you may never 'hear' the response to the spray.
Good luck.
You need to use a Scanner to 'watch' the short term fuel Trim for a change when you use a flammable spray able to pass through the air leak while looking for the source. Otherwise you may never 'hear' the response to the spray.
Good luck.
Thread
Thread Starter
Forum
Replies
Last Post
mark_5102
1997 - 2003 F150
10
Jan 1, 2015 11:38 PM
