Question about 2005 Chevrolet Cobalt

2 Answers

Car runs hot while at idle, not leaking fluid or anything, and doesn't get hot runing doen the road. What could this be?

Posted by on

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 93 Answers

Maybe the cooling fan relay isn't switching the fan on or, maybe cooling fan is coming on but only on low speed? Is the cooling fan coming on at all ?

Posted on Apr 09, 2011

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 4,399 Answers

Thanks for choosing FixYa and welcome to the site. I would check to make sure the fans are working first. If they are not, check the fuse. When you are driving, the engine is getting a little wind. When your at idle, it is not. If the fans are not working, then the engine will begin to overheat. I would say that is your issue. If the fuse is good and the fan still doesn't work, you could have a bad fan or a bad wire. You will need to test the wires with a voltage meter or visually inspect them for damage. You could have a bad coolant cap, thermostat stuck or bad, water pump. But, according to your statement, I would check the fan first. Thanks for using FixYa.

Posted on Apr 09, 2011

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

3 Answers

Power steering leak.....


You can get a liquid dye to put in the system. You need a UV light to scan the system for the leak it will glow green

Jun 29, 2016 | 1999 Oldsmobile Alero

1 Answer

How to check transmission fluid in a 1997 pontiac sunfire


Check with engine running, trans hot (ie: has runn down the road 15 minuets) car in park engine idling, remove dipstick, wipe and re-insert then remove and read level on stick.

Aug 26, 2014 | 1997 Pontiac Sunfire

1 Answer

1994 Toyota 4runner runs intermittently, no vacuum sounds as if there is a leak, all fluids topped off, truck cranks over and does start but will not stay running. Idle changes drastically until hot. Once...


You should check you MAF sensor. clean your throttle body and change your spark plugs. shouldn't be anything if you say there is NO vacuum leak.would recommend searching your PCV valve for a vacuum leak

Feb 07, 2013 | Cars & Trucks

1 Answer

1990 isuzu pickup 4cl often will NOT idle at very low rpms/under 15 mph unless I ride the brakes/E-brake and gas at same time. I know for sure I have a cracked ( in two places) exhaust manifold. The...


this car EFI, or CARB, ill toss COIN, EFI gas.
what 4 cylinder, name it there are 7 used.
I'll now toss my coin land on GAS 4 cylinder engine. (in usa?)
is it racing too fast hot
or RPM too low hot.?

we cant guess what your statement above means.
but
the exhaust manifold cracks will cause the 02 oxy sensors to LIE,
to go lean (0volts ) this cause the fuel injection
to go RICH, (cause and effect closed loop rules)
and can idle too slow. (see that word SLOW)
the wrong word you used, after reading this vast times.

"NOT idle at very low rpms"
i decode this to mean?
NOt idle at proper low RPM (800 hot)
or spec 800 rpm , is more clear
that means the idle races hot.
this word is in all books on cars. engine RACES




IF true RACES it's not :
the exhaust crack, but can be if engine EFI slams in to limphome mode, do the flash codes show 12?
you never did those did you , bad idea skipping that. Google isuzu diagnostic jumper and read.
it's not he fuel tank ever,. not RACING.

what can cause any map based engine to race
well frankly LOTS:


but can be reduced to: (physics +)
1: throttle cables jammed. no slack. bad.
2: throttle valve jammed (gunk below it does that)(in the throttle body)
3: all vacuum leaks, (put huge list here, ask)
4: ISC or ICA valves stuck open
5: engine not reaching and holding 180f will cause #4 above to fail, naturally. bad thermostat. cause.
6: someone hacked your TB. (ask)
TB = throttle body.

vacuum leaks is an all day wall of text post
i refuse. but do have links to them.

Mar 12, 2017 | 1991 Isuzu Pickup

1 Answer

Engine runing but wont acelerate when pressing the accelarator pidal


you have a leaking power valve, gasket or accelerator pump , repair or replace .
Test the fuel pump for defective and replace if necessary.
God bless you

Oct 16, 2012 | 2004 Ford Freestyle

1 Answer

Temperature needle stays on the hot , have changed temperature sensor but it still stays on the hot and the engine is not overheating or leaking anything..what is making it stay on the hot


replace the thermostat,, and make sure that the fan engages , just because the fluids don't boil over doesn't mean the temp isn't to high, if your saying that the temp gauge is stuck on the hot setting, and doesn't move even when the car is cold,, thats a different problem,, if thats the case whats the make , model , and year

Sep 11, 2011 | Ford Thunderbird Cars & Trucks

1 Answer

My transmission is leaking, they replaced the seal last week, now its leaking again. I tried checking the level, and it says dont add if the fluid is up to the 2 holes on cold or the hole under the hot, I...


Hello your neon will hold up to 7.5 letters when completely drained however the only way to check your transmission fluid is when your engine has reached full operation temperature.The transmission fluid level rises when hot so adding to the fluid cold is NOT a good thing to do.Sounds like your not empty so i would consider returning the car back to the person who repaired it and bring it to the attention repair is still leaking bring you paper with you.

Jan 02, 2011 | 1995 Dodge Neon

1 Answer

My nissan engine went to hot after idling in traffic abt 30 minutes with air conditioner on. We put in coolant and let idle for about 10 minutes and it was okay. Then we went to a department store and it...


Hi. Are you runing out of water in the radiator or at the reserve? if this happens there might be leak on the radiator or to the hoses. If there is no leak, then this could be the cooling system of the car that is having a problem. Try to check first the water pump.

Aug 12, 2010 | 2004 Nissan XTerra

1 Answer

Idle fluctuates


Its could be a few things. Most likely cause is you IAC (Idle air control valve) If this valve gets clogged up with carbon it will cause a idle surge on cold starts like you are describing.

Next your FITV (fast idle thermal valve). When the hot wax inside of this valve starts to wear it will cause a idle surge on cold starts.

Dec 13, 2008 | 1997 Acura CL

Not finding what you are looking for?
2005 Chevrolet Cobalt Logo

289 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75066 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7754 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...