2001 4.6 V8 just lost power

Thread Tools
 
Search this Thread
 
  #1  
Old 11-03-2003, 09:05 PM
the drifter's Avatar
the drifter
the drifter is offline
New User
Thread Starter
Join Date: Nov 2003
Location: South Florida
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
2001 4.6 V8 just lost power

I have a 2001 F150 w/ a 4.6 V8, just went over 80K miles. This morning the engine started trembling and the power is weak after an hour of driving the service engine light came on. The engine idle's fine but the trembling starts when I drive and the power is weak. Could it be my spark plugs going bad. I have not changed any ignition parts yet.
 
  #2  
Old 11-04-2003, 08:25 AM
LxMan1's Avatar
LxMan1
LxMan1 is offline
Moderator

Join Date: Dec 2001
Location: Louisville,Ky.
Posts: 22,436
Received 13 Likes on 13 Posts
It could be, I would run by Autozone ore somewhere like that and have them scan it for free. It will tell you why it is doing what it is doing. I would guess a bad coil though.
Jimmy
 
  #3  
Old 11-04-2003, 09:22 AM
true4.2's Avatar
true4.2
true4.2 is offline
Postmaster
Join Date: Jun 2003
Location: Lufkin
Posts: 3,310
Likes: 0
Received 0 Likes on 0 Posts
miss post
 
  #4  
Old 11-04-2003, 01:04 PM
Busa01's Avatar
Busa01
Busa01 is offline
Postmaster
Join Date: Sep 2003
Location: Florida
Posts: 2,887
Likes: 0
Received 0 Likes on 0 Posts
Coil? our trucks have those?

You can see if your getting a good spark. Start your truck and reach down with rubber gloves and pull and plug wire off the spark plug. Hold the plug end close to the plug. You should have a powerful enough spark to jump through the air and arc to the plug from the wire. This should be good for an inch or two. If the spark ain't jumping, than your not getting enough voltage.

Tom
 
  #5  
Old 11-07-2003, 03:12 PM
BVFD1983's Avatar
BVFD1983
BVFD1983 is offline
Senior User
Join Date: Nov 2003
Location: Peoria, IL
Posts: 255
Likes: 0
Received 0 Likes on 0 Posts
Yes they have coils! Everything needs a coil. Nowadays you may have up to 10 of them (on a V10.) Each coild has a plug wire running off of it.
 
  #6  
Old 11-08-2003, 02:40 PM
LxMan1's Avatar
LxMan1
LxMan1 is offline
Moderator

Join Date: Dec 2001
Location: Louisville,Ky.
Posts: 22,436
Received 13 Likes on 13 Posts
COP's do not have plug wires. They connect directly to the plugs.
The older 4.6's and 4.2's used coil packs which did have plug wires and fired multiple plugs. The later V8's use COP's(coil on plug) and have 8 separate coils. (10 on a V10)
Jimmy
 
  #7  
Old 11-10-2003, 08:23 AM
Busa01's Avatar
Busa01
Busa01 is offline
Postmaster
Join Date: Sep 2003
Location: Florida
Posts: 2,887
Likes: 0
Received 0 Likes on 0 Posts
hmmmm,

Well, I just replaced my plug wires with Taylor Spiro Pro's. They were Universal so I had to cut and crimp myself. Took me two hours.

They were regular plug wires. No coils were attached to the plugs.

The wires ran from the plugs into what looks EXACTLY like a distributor. Next to the distributor (electronic ignition) is a black box with a wire harness that comes out of it and goes into the distributor. It did not look like a conventional coil pack, and it did not have a plug wire coming out of it and going into the distributor. it had a wiring harness instead.

I guess you could still call that a coil. However, when I hear the word "coil". I think of the old fashioned round coil packs. You know, the ones Accel makes and so forth.

I know I do NOT have 1 coil for each plug, that's for sure. If we still disagree I can take some pictures with the digital camera and post them in my gallery.

Tom
 




All times are GMT -5. The time now is 02:35 PM.