Q: SUV ran rough and has engine problems

asked by on

My SUV started running rough, around a month ago. It seemed to me that there might be a problem with the transmission, but I went to the repair shop and they said the engine is the problem. Some spark plugs were replaced and some other things, not sure what. They also serviced the transmission, even though they said it was fine - and then it ran great. Before this service call, at a different auto repair shop, I had gotten a lube job, had the oil changed and replaced the air filter. I had also had the mirror replaced on the driver’s side. This morning, coming home from a long trip, every time I would put the SUV in Drive, it would die. On the gear shifter, the overdrive indicator was flashing. I read the manual and it said that means that it needs immediate servicing. Yesterday, for the first time, we started having intermittent difficulties with the electric windows not working properly. Do you think any of these problems are related and what should I do?

You may want to have faults surveyed to see if there are any underlying issues on your 2003 Ford Excursion. Battery voltage is extremely vital to vehicles with heavy electrical systems such as the Excursion. If the battery voltage drops low nearing the 10v mark, computer and electrical system malfunctions can occur as a result with a whole host of various seeming non interrelated malfunctions occurring.

The charging system should be looked at as well to ensure you are not getting the opposite effect of overcharging where a system voltage that is too high can cause malfunctions and ultimately damage as well.

Now there is a bulletin out by Ford concerning 2002-2005 Excursions developing corrosion on the blot of the positive terminal. This can cause contact issues, which could lead to various electrical system malfunctions.

There is a repair kit available that will avoid replacing the engine positive battery cable which is a very costly and involved repair. You may want to enlist the help of a mechanic, such as one from YourMechanic, who will have the tools, training, and expertise to diagnose and correct your electrical system issues.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. SUV ran rough and has engine problems

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Engine makes metal-to-metal noise on a 2012 Ford Taurus SEL 3.5

If you are talking about engine noise, that means that the engine is on its way out. That generally means that the bearings on the crank are worn and that the pistons are making the clunking around. Because, instead of...

Q: Opinion on Subaru Impreza symmetrical all-wheel system

It's a very interesting system and generally it works quite well. But, for the rest of the car--Subarus are notorious for blowing head gaskets and if they have automatic transmission, automatic transmissions are known for wearing out. So if you...

Q: 03 Silverado no crank no start with new starter, new battery, strange weak electrical noise coming from dash when trying to start

What you are describing is obviously an electrical fault and thus will require a circuit trace, of at least the starting circuit, to resolve. Typically, this requires the factory wiring diagram from the service manual. If you want the required...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...