Oct 162016
 

1995 Ford TaurusWhat causes a temperature gauge to not work and then once in awhile work for a short period of time?


RESPONSE

  • Failing temperature sending unit
  • Bad connections or wiring problem
  • Faulty gauge in dash

Coolant Temperature Indication System, Engine

The engine coolant temperature indication system is a magnetic-type indication system consisting of:
•the water temperature indicator sender unit located in the engine block or cylinder head
•an engine coolant temperature gauge in the instrument cluster
The water temperature indicator sender unit operates as follows:
•changes resistance according to engine coolant temperature, which varies the current flow through the engine coolant temperature gauge
•the pointer position varies proportionally to the current flow.
•resistance is high when the engine coolant temperature is low, and low when the engine coolant temperature is high
•the pointer of the magnetic engine coolant temperature gauge remains in position when ignition switch is turned to the OFF position
•pointer will move to the correct indication whenever the ignition switch is turned back to RUN position
•pointer may indicate at the top of the normal band with the engine coolant temperature within specification, under certain driving conditions such as heavy traffic or stop-and-go driving in hot weather

Engine Coolant Temperature Gauge

The engine coolant temperature gauge is identified by a thermometer symbol:
•H means high temperature
•C means low temperature
•the solid band between C and H is the normal temperature range

Water Temperature Indicator Sender Unit
The water temperature indicator sender unit:
•is mounted into the thermostat housing bypass tube. The signal sent to the engine coolant temperature gauge varies with the resistance of water temperature indicator sender unit, which depends on the engine coolant temperature.

Oct 162016
 

2006 Ford 500What causes rotors to warp? Warped rotors?


RESPONSE

HEAT.

Warped Rotors Possible Causes

Brake rotors are sensitive to heat. Under normal driving conditions they will remain strong enough to resist becoming warped rotors. However there are a few things that will cause excessive heat. If the drivers tends to drive with two feet or rest there foot on the brake while driving. This should be avoided if at all possible. If the driver tends to wait until they are close to where they want to stop and then use excessive force to stop. Also, what I like to call a panic stop. Maybe you are on the highway and come up on stopped traffic it is hard to void jamming on the brake pedal to avoid an accident. Also when the brake pads become worn and start to drag on the rotor or a sticking brake caliper.

 

Oct 152016
 

2003 Ford WindstarMy van is currently having issues. First it has been dying during idle not immediately but soon after it has to idle for a minute. The check engine light is on and the codes come out to lean combustion (autozone). When I push on the gas to get up to speed after idle the CEL starts to blink and the van doesn’t seem to be getting enough gas. Sometimes I smell exhaust and sometimes a puff of white smoke come out of the exhaust on starting it. If I’m stopped at a red light it kinda chugs but if I put it in neutral it seems to run a little better. The rpms drop during idle also. If you have a good Idea of what’s going on, it would be much appreciated


RESPONSE

White smoke from the exhaust is an indication of a blown head gasket. This would also cause a rough idle and could cause the engine to want to die. Check coolant level and cylinder compression.

System Too Lean Possible causes

– Intake air leaks
– Faulty front heated oxygen sensor
– Ignition misfiring
– Faulty fuel injectors
– Exhaust gas leaks
– Incorrect fuel pressure
– Lack of fuel
– Faulty Mass Air Flow (MAF) sensor
– Incorrect Positive Crankcase Ventilation (PCV) hose connection
Oct 152016
 

2001 Ford TaurusMy water pump was replaced along with new belt in march 2016. It has a new thermostat and the radiator was flushed out. When driven for some distance the water will boil out of the overflow tank but the temp gauge is in the normal range. A new cap was put on 3 months ago and the fans are working. Please help. We make a lot of out of town doctor appointments. I am stumped. Could the transmission be overheating?


RESPONSE

The fact that you mentioned “water” makes me wonder if water was used in place of coolant. Water has a lower boiling pint than coolant. If the coolant is less than 50/50 water and coolant concentrate, it will boil. If this is the case, replace the cooling systems “water” with Coolant.

If this is not the case, there may be a sticking thermostat (even new ones can do this) or the cooling system needs to be bled. But generally an overheating indication of the temperature gauge will occur with this.

Oct 142016
 

2000 Ford Rangerall at the same time my speedometer stopped working my wipers stopped oil pressure gauge reads 0 it is an automatic but will not shift gears. Changed the speed sensor no help had a mechanic check it out his computer says speed sensor but that is brand new the mechanic was stumped and so am I. I does blow a 7.5 amp fuse


RESPONSE

There are several 7.5 amp fuses. If you could tell me number of the fuse I could pull up the appropriate wiring diagram for that circuit. You will need to locate the short in that circuit and repair it. Once the repair is made the fuse will no longer blow and the circuit will function as it should.

Oct 102016
 

2003 Ford ThunderbirdI have always wanted a set of 3/8″ red line tires. I purchased Coker manufactured Red Line American Classic tires, same size and when replaced had bad vibration after standard balancing, Coker tire MFG very helpful and set me up with local dealer for Forced Balancing. this is best balancing possible and checks rims as well. One tire out of spec and had to be replaced but still vibration that car never had before changing the tires. Vibration not in seat but felt in steering as if oval wheel. A call Back to Coker tire and they were helpful by sending me 4 more tires that were pre force balanced at the factory between 11-14 lbs road force. Up to 35 # is acceptable range so these readings were great. Had them re installed and re force balanced with excellent readings. Car still has a vibration like and oval wheel but better at high speeds. No bent rims as force balance machine checks that so what can be the problem? Car brakes fine no shutter or vibration and all wheels are cool so that stumps me. Please help as this is a frustrating mystery and who do I go to next?


RESPONSE

If the vibration is felt in the steering wheel, rotating the fronts to the back would be a quick check. If the vibration does not follow the wheels to the back then you know it isn’t in the wheels.  So you are left with the hub bearings, rotors and steering components. Most common would be the rotors, even if the typical brake pedal pulsation is not felt.

Oct 032016
 

2009 Ford EdgeMy engine is overheating when idling. Then, it is not accelerating and almost dying at first after coming to a stop. Once it finally gets going it can only drive about 40 to 50 mph. Every time I slow down or stop it nearly dies. It is very hard to get it to accelerate after a stop.


RESPONSE

Anytime an engine is overheating it should not be driven until the problem is corrected or permanent damage WILL occur. This could be from being low on coolant(find and repair leak), stuck thermostat to a radiator cooling fan not working.

Oct 012016
 

1998 Ford F150When I come to a stop some times the idle will drop very low 250 rpm and will stall. It will start again but this is very unsafe when it happens at an intersection. What should I do?


RESPONSE

YEAR of Vehicle?

First, have any engine codes pulled and post them below in the comments.

No codes, most likely cause would be the IAC – Idle Air Control.

Sep 292016
 

2012 Ford F150My alarm goes off when I press the lock/unlock buttons on my fob. Sometimes the alarm goes off when unlocked or I can be walking up to the truck and it sets it off. Any advice would surely help. Thank you


RESPONSE

The vehicle is not operating at all like the standard ford PATS system, the alarm (lights and horn) should only go off in the event the panic button is pressed. This vehicle does not have a perimeter theft system. It just has a coded key.

You need to disconnect the negative battery cable for 10 minutes. Then reconnect. Now lock unlock the door with the remote key fob then use the key and do the same, now try starting it. if this fails to work then someone has installed something else in the vehicle incorporated with the ford standard system or you have a faulty PCM.

Remote Keyless Entry (RKE) Lock/Unlock Control — Unlock

The RKE feature provides lock/unlock functions independently of key position, vehicle speed, or transmission position. The RKE feature provides a stepped (if enabled) process for unlocking the doors. Upon receipt of the first request for unlocking the doors, the RKE feature requests the BCM to unlock the driver door only and provides a long flash of the turn signals. If another unlock request is received within 3 seconds of the first, the RKE feature requests the BCM to unlock all the doors. This feature can be configured to global unlock, so that all the doors unlock on the first press of the UNLOCK button. Refer to Stepped Unlock Programming in this section for programming information.

Remote Keyless Entry (RKE) Lock/Unlock Control — Lock

The RKE feature requests that all the doors be locked when the LOCK button is pressed. On any press of the LOCK button with all doors closed, the BCM provides one flash of the turn signals. If any door is ajar, no flash occurs. As soon as the last door is closed, the BCM provides the flash of the turn signals. If 2 presses of the LOCK button are received within 3 seconds, the horn chirps once and the turn signals flash twice to indicate that all the doors are closed and locked. If any door is ajar when the second lock request is received within 3 seconds of the first, the RKE transmitter feature requests the BCM to chirp the horn twice without flashing the turn signals to indicate all the doors are locked but one or more doors are ajar. When the key is in the RUN or START position, the turn signal flashes and horn chirp confirmations do not occur.

Panic Alarm

The panic alarm feature provides audible and visual alarms which are evident from the exterior of the vehicle. The panic alarm feature requests that the turn signals are flashed and the horn sounds until deactivation. The flashing of the outputs occurs simultaneously. Activation of the panic alarm is accomplished by pressing the panic button on an RKE transmitter whenever the key is in the OFF position. At all other times this feature is disabled. Deactivation of an active panic alarm is accomplished by any of the following actions:

  • A second press of the RKE transmitter panic button
  • The key is switched out of the OFF position
  • A period of 2 minutes and 45 seconds has elapsed since the initial activation