Problems With a 97 4.6L
Thread Starter
|
Junior Member
Joined: Oct 2009
Posts: 8
Likes: 0
From: Escanaba,MI
Problems With a 97 4.6L
My truck seems to be missing and lack of power. Im coming up with codes P0301 (cyl misfire#1) and P0307 (cyl misfire#7) and P0171 (bank 1 lean) and P0174 (bank 2 lean). ANy ideas on where i should start? The plugs/wires and fuel filter where just replaced. Thanks in advance guys!!
Senior Member
Joined: Jan 2009
Posts: 637
Likes: 1
From: PC, FL
My truck seems to be missing and lack of power. Im coming up with codes P0301 (cyl misfire#1) and P0307 (cyl misfire#7) and P0171 (bank 1 lean) and P0174 (bank 2 lean). ANy ideas on where i should start? The plugs/wires and fuel filter where just replaced. Thanks in advance guys!!
Thread Starter
|
Junior Member
Joined: Oct 2009
Posts: 8
Likes: 0
From: Escanaba,MI
Its got bosch platnums and the trucks got 271,000miles. I just replaced both coils and the only code im coming up with now is bank 2 lean. I wonder if one of my cats is plugged? Its running on all 8 but still dont have much power... thanks guys...
Senior Member
Joined: Dec 2006
Posts: 43,542
Likes: 819
From: Joplin MO
Get those Bosch out of there and put Motorcrafts in. Check the PCV elbow in back of the intake manifold for cracks and mushiness.
A muffler shop can use an infrared sensor to tell if your cats are clogged.
A muffler shop can use an infrared sensor to tell if your cats are clogged.
Member
Joined: Oct 2009
Posts: 10
Likes: 0
From: Belgium
hey
Yes GLC , i had the same prob only i also had code p1409 ( snap on tester ) and today i checkt all the vac hoses and no crack in it . So i have disconected all the vac hoses and also the demounted the right innerwing . There is the canister with the vac hoses . then i disconected those and cleand eatch off it with air pessure . The hose from the canister to the EVR was as good as closed and i blow all the dirt out of it . by remounting everything the prob was fixt , no more lamda probs and no more evr code .
hope its a little help .
Is it not so GLC when the cat is blocked that the hoses DPFE and EMS has to blow of from the egr tube ?
Cya
Yes GLC , i had the same prob only i also had code p1409 ( snap on tester ) and today i checkt all the vac hoses and no crack in it . So i have disconected all the vac hoses and also the demounted the right innerwing . There is the canister with the vac hoses . then i disconected those and cleand eatch off it with air pessure . The hose from the canister to the EVR was as good as closed and i blow all the dirt out of it . by remounting everything the prob was fixt , no more lamda probs and no more evr code .
hope its a little help .
Is it not so GLC when the cat is blocked that the hoses DPFE and EMS has to blow of from the egr tube ?
Cya
Senior Member
Joined: Oct 2007
Posts: 3,439
Likes: 0
From: farmington hills, MI
Get the bosch plugs outta there and get ya some motorcraft plugs ASAP that will help the misfires.
as for the lean check vac hoses and the intake manifold for leaks.
as for the lean check vac hoses and the intake manifold for leaks.
Trending Topics
Thread Starter
|
Junior Member
Joined: Oct 2009
Posts: 8
Likes: 0
From: Escanaba,MI
Truck runs good now! #7 injector was bad, #1 cyl the coil was bad, 2 of the cats were plugged and there was a vaccum hose cracked by the passenger side valve cover. Replaced injector, took all 4 cats off and welded bungs for o2s in new pipes, replaced vaccum line and replaced both coil packs. Thanks guys!