Hello...!!!
I'm new to this site and also very new owner of a 2005 corvette....and I had the miss fortune to run over a plastic garbage bag...Not knowing much about the car I kept on driving it...never thought for a moment that the bag was sucked in by the fun...a couple of days later the car over heated..I noticed pieces of that bag sticking out under de front of the car ...I manged to pull the rest of the bag out....But now my fan doesn't run.....I can move it and rotate it with my hand ….but that is it....Does anyone had run into this problem...? any advise on what to check...??..Fuses, madules, relays...etc...Thanks..

 

You may want to post this in the techical/performance section instead of the for sale section for more responses. Good luck with getting it fixed!

 

if you able to remove the fan, I'm guessing you'd find wrapped around the fan / motor shaft, the remnants of that plastic bag.
it may be melted (probably rock hard ) in place. hopefully not.

 

The fan doesn't run all the time. It only runs when the engine is running and when the coolant reaches a certain temperature.

 

Welcome to the love of Corvettes, can't really help you, but here is your owners manual of the web:

http://www.c6registry.com/Technical/manuals/2005OM.pdf

 

You might find the information here useful. Among other things, it details the location of the fuse. https://www.corvetteforum.com/forums...t-working.html

 

Thank you for your response….I will take another look in there....But....Do you think that the fun would still move if there was a solid melted plastic around the fan motor shaft....Because I got my had in there and I can move the fun....it actually rotates....just not electrical signal to it...do you know what the fuses number are..?? the only one describe in the fuse box is number 25/60amps.....Is there another fuse or module I should check..??
Thank you very much for your help...
Rick

 

This is correct.

Let the car idle until it warms up. If the fan does not kick in at 220-230, then shut it down and troubleshoot further.

 

thanks...I did know that the fan kicks in after certain temperature...over 200F... I've left idling for about 20 minutes and the fan doesn't kick in at all...Is there any more fuses I should check..? because if the plastic bag jam the fan I assumed a fuse would have blown...…
Thanks anyways....

 

Cooling Fan Control - Variable Speed Single Fan System
The engine cooling fan is a variable speed fan. The engine control module (ECM) controls the fan speed by sending a pulse width modulated signal to the cooling fan control module. The cooling fan control module varies the voltage drop across the cooling fan motor in relation to the pulse width modulated signal.

Cooling fan speed is effected by many different conditions and can be adjusted from 10% to 90% duty cycle (PWM), 90% is considered high speed fan. When multiple cooling fan speed requests are received the ECM uses the highest cooling fan speed of all the requests. The ECM commands the cooling fan ON under the following conditions:

• Cooling fan duty cycle starts when engine coolant temperature reaches approximately 95°C (204°F) and reaches high speed at temperatures above 113°C (235°F).

• Cooling fan duty cycle starts when A/C pressure reaches approximately 1100 kPa (160 psi) and reaches high speed at A/C pressures above 2480 kPa (360 psi).

• At engine oil temperatures above approximately 150°C (302°F) the cooling fan duty cycle will be commanded to high speed.

• At transmission oil temperatures above approximately 132°C (270°F) the cooling fan duty cycle will be commanded to high speed.

• After the vehicle is shut OFF if the engine coolant temperature at key-off is greater than 113°C (235°F) or the A/C pressure is greater than 1720 kPa (249 psi) the cooling fan duty cycle is set to 50%, low speed. If the coolant temperature drops below 110°C (230°F) and the A/C pressure drops below 1660 kPa (241 psi) the fan will shut OFF. The fans will automatically shut OFF after 2 min. regardless of coolant temperature.

I would pull the plug to the cooling fan and first see if the connector is melted inside. They can overheat under load, melt and loose contact. Running a jumper wire, bypassing the plug is a simple repair. If ok, run a direct 12v to the fan to see if it comes on. The 60amp fuse is under the hood. The cooling fan control module can fail and is mounted on the fan housing.

 

Wow....!!!!….Thank you..!!!!….You are a very knowledgeable person....!!..I'm impressed...Thank you again..!!

 

Karma, it doesn't matter how long you let it idle. If it doesn't get up to the required temps, it will not come on.

 

Thank you very much for taking the time to provide me with so much info.....Appreciated very much..!...Thanks..!!

 

let it idle. put the ac on high. that will kick the fan on because of this

• Cooling fan duty cycle starts when A/C pressure reaches approximately 1100 kPa (160 psi) and reaches high speed at A/C pressures above 2480 kPa (360 psi).

 

I want to give each one of you that helped with this problem. A new member here in need of help and advice, a lot of people came to the rescue and gave help. I thank each one. I kept reading, and more and more help information. For some reason this just stands out , THIS is what a good forum is all about. Giving, sharing, and encouraging . makes me proud I am a part of this great forum.
I ask, DID this help in getting your fan working? I want to say welcome to a great forum, spend time here, a lot of great people.

 

I must say to be a member of this group is an incredible honor and I feel blessed with so much incredible information related to the problem with my car...Unfortunately I haven't have much time to really get into looking at the problem...….I hope this weekend I could lift the car and check the fan......I actually bought 4 hockey pucks and I will modify them to insert in the frame's slots ….The only thing is I'm not much of a mechanic....but I will give it a try....wish me luck.

 

...or when the A/C is turned on. Yeah, I've run over plastic bags before and always looked out the back of the car to make sure it didn't get sucked up, wondering what would happen.