Ford Forums banner

1 - 20 of 30 Posts

·
Registered
Joined
·
9 Posts
Discussion Starter #1
Our problem occurs when cruising in our 2003 Taurus SE at 60-65 mph, we try to pass another vehicle and when the RPMs get to about 4500+ the car heavily stutters and lurches and only moderately accelerates instead of quickly.

I have replaced both O2 sensors, the MAF sensor, air filter, fuel filter and the plugs were replaced 20,000 miles ago.

HELP!?!

Also best milage is typically 23mpg under the very best of circumstances.
60 mph, no A/C, open road, 20 miles each way.
 

·
Registered
Joined
·
30 Posts
I had something similar on mine, a 2000 Taurus. The codes said the EGR valve was bad, and one other thing, (which I already replaced), trying to find time to replace EGR valve.
 

·
Registered
Joined
·
9 Posts
Discussion Starter #4
Strange thing is I am not getting any codes at all, and can be quite hair-raising when trying to pass someone on the highway and your power ottoms out while passing.

I'll read up on the EGR valve.
 

·
Registered
Joined
·
9 Posts
Discussion Starter #5
New symptom - car will not start.
The transaxle light is on now.
Starter will not spin at all.
I guess I have the transmission problems that everyone else is having with Tauruses.
All this car wants and needs is endless amounts of money wasted on it.
 

·
Registered User
Joined
·
1,836 Posts
horse41tx said:
New symptom - car will not start.
The transaxle light is on now.
Starter will not spin at all.
I guess I have the transmission problems that everyone else is having with Tauruses.
All this car wants and needs is endless amounts of money wasted on it.
The transaxle light is normally on solid when the engine isn't running. When you turn the key to start, do you hear a click??? If not you may have an issue with the trigger wire that attaches to the starter solenoid. If it clicks, more than likely it is a bad starter. Does the THEFT light flash???
 

·
Registered User
Joined
·
1,836 Posts
horse41tx said:
Our problem occurs when cruising in our 2003 Taurus SE at 60-65 mph, we try to pass another vehicle and when the RPMs get to about 4500+ the car heavily stutters and lurches and only moderately accelerates instead of quickly.

I have replaced both O2 sensors, the MAF sensor, air filter, fuel filter and the plugs were replaced 20,000 miles ago.

HELP!?!

Also best milage is typically 23mpg under the very best of circumstances.
60 mph, no A/C, open road, 20 miles each way.
Did you replace the plug wires when you did the plugs??? I had to replace the plugs on mine because of the tinkering of some goob trying to steal from the original owners of my car. I did only the plugs and ended up with an intermitent misfire at idle. Did the wires and it was perfect. When the car stutters like this again, mat the gas and see if it gets worse and the check engine light starts flashing. A flashing check engine light indicates a misfire.
 

·
Registered
Joined
·
1 Posts
Hello all
Our 02 Taurus is stuttering and lurching at 4500 rpm as well. I noticed it would rev past this if its shifted out of overdrive manually.
The wife about got in a tight getting on the interstate yesterday because of this problem. Any Ideas on what to check on this.
 

·
Registered
Joined
·
9 Posts
Discussion Starter #9
New Starting Problem:
BTW, no click when starting. The only thing (I think) I hear is the fuel pump toward the back. All lights work, just no start and no crank. And a brand new battery.

I am going to try to pull the starter when I get a chance, hopefully tonight or tomorrow. I get it tested and see what exactly is wrong - I hope.

Because the car is dead in my sloped driveway this will be fun with its 4-6" of clearance. I guess I will use my RV jack to get to it. Maybe I am seeing the 2 bolts from the top via access near radiator.

I am glad to hear the Transaxle light is supposed to be ON before the car starts, If the transmission were screwed up I would almost rather take it to a field and blow the damn thing up for all the trouble. :(

Initial Stuttering Problem:
I was going to look into new plugs and wires, I may just go on thru with that. Too many dangerous situations when on long drives with power cutting out while PASSING!

Thanks all for the responses.

I will try to follow up on the starter/solenoid and plugs/wires as they happen.
 

·
Registered
Joined
·
9 Posts
Discussion Starter #10
Starting Problem fixed by simply replacing the starter, 2 bolts and 2 wires. :hy:
Only thing I had to do was use my RV jack to allow me clearance under the vehicle.
Apparently the starter must have been going bad for a while because it has never fired up this easily in the past.

Now on to the original stuttering problem!
Going to look into plugs and plug wires if no more codes come up for a while.

Another question:
Can the starter accidentally engage or stick while the engine is running?
 

·
Registered
Joined
·
2 Posts
I have a 2002 Taurus with the exact same problem. I have new Plugs, New fuel Filter, New Fuel Pump and new air filter.

Before I replaced the Fuel Pump this would happen at 3500 RPM and now it happens at 4500 RPM.

When I mash the throttle it usually will get threw first gear and shift at 5,000 RPM then it will stutter at 4500 RPM and never make the shift to third gear. Same thing happens when I try to pass, it just stutters at 4500 rpm and will not shift until you back off.

Could this be a Catalytic Converter?

Any help would be greatly appreciated.
 

·
Registered
Joined
·
3 Posts
I have a 2003 Taurus with what sounds like the same problem. It starts with the studder around 4300 rpm and would stop after exceeding 4800 rpm. However, when the engine gets hotter, it gets much worse.

I took it to the dealer today and took them for a ride in the bucking car. They determined that the problem is with the synchronizer. They will replace it on Monday. I will let you know if that fixes the problem. $385 fix.
 

·
Registered
Joined
·
3 Posts
It looks like they changed the cam position sensor and the synchronizer. The car runs like a new one. I floored it and the RPMs would run the full range without any hesitation whatsoever. Definitely did the trick.
 

·
98 GREEN HORNET
Joined
·
17 Posts
I had this problem with my 07 Focus, the dealer replaced the Alternator and it fixed it. I could'nt believe that this was the problem. After test driving it before accepting it back, to my surprise it fixed the problem.
 

·
Registered
Joined
·
9 Posts
Discussion Starter #17
Was anyone else's gas milage affected who had this problem?
My wife consistently gets only 20-22 mpg.
Our best on long trips is about 24mpg.
 

·
Registered
Joined
·
3 Posts
dabarnette said:
Exactly what synchronizer are you talking about?
I will tell you what they told me. These cars do not have distributers anymore. The ignitions are electronic. The synchronizer performs the same function as the distributer did by telling the other electronics when to fire the plugs.

The studdering was bad signals from the synchronizer causing the timing to be thrown off among firing problems. That is why the car would jerk so bad.
 

·
Registered
Joined
·
2 Posts
AH HA!! Thanks. Never heard part of the distributorless ignition called a synchronizer before. I looked on fordparts.com and sure enough, there it is.

I'll give it a shot because mine's doing the same thing.

THANKS
 

·
Registered
Joined
·
2 Posts
The Synchronizer and sensor fixed my problem. To bad the dealer could not figure this out. I went to a little one man shop with access to Mitchell's repair info online and he figured it right out - No transmission problem or Fuel Pump Problem.
 
1 - 20 of 30 Posts
About this Discussion
29 Replies
17 Participants
tomwreid
Ford Forums
Ford Forum is a community to discuss all things Ford. Check out our discussions on the Ford Escape, Mustang, Edge, F-150, Raptor, Explorer, Focus, Fusion, Fiesta and more!
Full Forum Listing
Top