[mossdahaus]

So 2 weeks ago, sitting in 95 degree weather in traffic with A/C on, I noticed my temp light on and my temp gauge all the way to the H. I glance at my AP to check coolant temp and see its around 250. Pull over, max defrost on, A/C off, open hood and let her idle then turn the car off with the acc on to keep the fans running. I took it into the dealership where they had the car for a week and could not replicate the issue with no answer...gave it back. Yesterday, in the same scenario and weather, the car decided to over heat once AGAIN. This time, I see smoke billowing out from under the hood. Same steps as before but this time I notice that coolant is sprayed all over the driver side engine bay near the battery. Temps reached 248. I did switch from 5W-20 to 5W-30 last week after I got the car back from the dealer thank God.

Called Ford and had it towed into the same dealer last night. Dealer could not replicate the problem again and stated the there was a plastic coupler leading to a metal coolant hose that blew. Ford tech line had no answers just like last time for the dealer after all tests were ran and completed. What to do?

I am worried that the coolant line that blew was the turbo coolant feed...should I be worried? Service writer did not know if it was or not when I asked.
Dealer is thinking its a possible cooling system restriction. What are your thoughts?

I immediate worry is the long-term dependability of the car with it overheating like this twice. Should I be worried?

 

[reddog99]

Just an FYI: the A/C runs when the Defrost is on. Turning the heater to max is probably what you would need to do.

 

[D1JL]

Just an FYI: the A/C runs when the Defrost is on. Turning the heater to max is probably what you would need to do.

100% correct.

I am surprised that your Service Writer could not tell you what was going on.
You will get a copy of all the work done, even under warranty.
Any parts used will be listed.


Dave

 

[Cesso]

Sounds like a sticking thermostat to me.

 

[mkeperson]

Hard to know without seeing the vehicle, but given the reports of defective (obstructed) radiators causing increased temps/pressures/overheating I suggest you contact FordService to get everything docuemnted.

 

[FordService]

So 2 weeks ago, sitting in 95 degree weather in traffic with A/C on, I noticed my temp light on and my temp gauge all the way to the H. I glance at my AP to check coolant temp and see its around 250. Pull over, max defrost on, A/C off, open hood and let her idle then turn the car off with the acc on to keep the fans running. I took it into the dealership where they had the car for a week and could not replicate the issue with no answer...gave it back. Yesterday, in the same scenario and weather, the car decided to over heat once AGAIN. This time, I see smoke billowing out from under the hood. Same steps as before but this time I notice that coolant is sprayed all over the driver side engine bay near the battery. Temps reached 248. I did switch from 5W-20 to 5W-30 last week after I got the car back from the dealer thank God.

Called Ford and had it towed into the same dealer last night. Dealer could not replicate the problem again and stated the there was a plastic coupler leading to a metal coolant hose that blew. Ford tech line had no answers just like last time for the dealer after all tests were ran and completed. What to do?...

I'm here to help, mossdahaus. Is your Fiesta ST still with the dealer? Please let me know, and also send a private message with your full name, updated mileage, servicing dealer information, VIN, and best daytime contact number. I'll get this escalated to the regional customer service manager for your area.

Brittany

 

[mossdahaus]

UPDATE: Called dealer today...STILL no answers. I have been in touch with Brittany from Ford Customer Service as well as my Regional Customer Service Manager and they are trying their best to get this solved but they can only do so much. The dealer cannot get my car to show signs of overheating again and I am afraid that it won't until it just HAPPENS again.

 

[tubbyaz]

I dunno, it sounds like a classic case of thermostat sticking. Would be a cheap stab at a solution, unless its buried under too much hardware. FWIW, I live in Phoenix, regularly driving in stop and go traffic at 108+ degrees, and I've yet to see the temp gauge to stray from normal.

 

[hyatt]

I just had an overheating incident as well. I was trying to pass someone on a slight incline in approximately 80-90 degree weather and the little digital gauge pegged and my light came on. I pulled over immediately, put the heater on full blast and the car cooled down after a couple of minutes, no change in fluid levels or leaks etc and I had put some Water Wetter in that day in anticipation of this happening after reading this and a couple other threads. The car has been fine since but this makes me nervous.

 

[[email protected]]

So 2 weeks ago, sitting in 95 degree weather in traffic with A/C on, I noticed my temp light on and my temp gauge all the way to the H. I glance at my AP to check coolant temp and see its around 250. Pull over, max defrost on, A/C off, open hood and let her idle then turn the car off with the acc on to keep the fans running. I took it into the dealership where they had the car for a week and could not replicate the issue with no answer...gave it back. Yesterday, in the same scenario and weather, the car decided to over heat once AGAIN. This time, I see smoke billowing out from under the hood. Same steps as before but this time I notice that coolant is sprayed all over the driver side engine bay near the battery. Temps reached 248. I did switch from 5W-20 to 5W-30 last week after I got the car back from the dealer thank God.

Called Ford and had it towed into the same dealer last night. Dealer could not replicate the problem again and stated the there was a plastic coupler leading to a metal coolant hose that blew. Ford tech line had no answers just like last time for the dealer after all tests were ran and completed. What to do?

I am worried that the coolant line that blew was the turbo coolant feed...should I be worried? Service writer did not know if it was or not when I asked.
Dealer is thinking its a possible cooling system restriction. What are your thoughts?

I immediate worry is the long-term dependability of the car with it overheating like this twice. Should I be worried?

Did they show you which line it was?

 

[[email protected]]

I just had an overheating incident as well. I was trying to pass someone on a slight incline in approximately 80-90 degree weather and the little digital gauge pegged and my light came on. I pulled over immediately, put the heater on full blast and the car cooled down after a couple of minutes, no change in fluid levels or leaks etc and I had put some Water Wetter in that day in anticipation of this happening after reading this and a couple other threads. The car has been fine since but this makes me nervous.

Added water wetter? I'm confused, what was in it to begin with?

-Steve

 

[hyatt]

Added water wetter? I'm confused, what was in it to begin with?

-Steve

Just the factory fill coolant but the line was at the MIN level. I've always had good luck with water wetter in the past.

 

[Ronbo]

I didn't know they still made water wetter! I used to use it in my '59 Bugeye Sprite.


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