Question about 1999 Chevrolet Venture

1 Answer

I have a cooling promblem. My temperature gage is going from cold to hot, then it goes back to cool. my low coolant light comes and go off and on. My radiator and coolant levels are fine. I took it in to try to get a diaginostic test, but its not working. Is it any way the diagicnostic line came unhooked from the computer.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Chevrolet Master
  • 75,077 Answers

U have a blown head gasket(s)

Posted on Sep 10, 2009

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:

2 Answers

Heating is not working on my 2008 saturn aura was working fine then it just stopped now it comes an goes an my temperature gauge is fluctuating between hot an cold but the car is not overheating...what is...


check coolant level sound like engine low on antifreeze.make sure coolant overflow jug coolant level full cold mark.if overflow jug empty more likely radiator low on coolant allowing air in the cooling system.

Oct 22, 2013 | 2008 Saturn Aura

1 Answer

Heater runs hot then goes cold


Do you have a temperature gage in your instrument cluster? When the temp goes cold, does the temp gage rise? Check your coolant level both in the radiator and the coolant recovery tank under the hood, and fill as necessary. If that is OK, then check your serpentine belt for wear and/or slippage around the water pump. Lastly, if you have a temp gage and are noticing fluctuations in the reading, you may need to replace your cooling system thermostat. Good luck.

Oct 04, 2013 | 2002 Chevrolet Silverado 1500

1 Answer

Mini Cooper temperature gauge goes to red zone when idle


check coolant level could be too low allowing air in the cooling system causing air pocket in engine around the engine coolant sensor.coolant sensor needs to be in hot coolant so it will cause the cooling fan to come on at a set temperature.make sure coolant correct level and the coolant level in the cooling overflow jug should be at full cold mark.the cooling overflow jug should never be empty,if you see empty cooling overflow jug air got in the cooling system so make sure when engine cold every time raise hood make sure cooling overflow jug coolant level at full cold mark.if jug stay empty you have cooling leak.so replace radiator cap,if coolant level all good,i would replace the engine coolant temperature and thermostat.when your car come to a long stop or driving along long line of slow moving traffic the engine coolant blower motor should running if not have vechicle code scan for faulty coolant fan motor control module.or ecm problems.

Sep 01, 2012 | 2005 Mini Cooper

2 Answers

I have a 2004 Pontiac Sunfire. When the car is in idle the air blows out hot and the Temperature gage rises and the car over heats. When the car is moving the air blows out ice cold and the temperature...


Sounds like your cooling fans on the radiator are not working. The fans are activated by a thermol switch on the engine or radiator reading the coolant temperature and an A/C switch. When the coolant is too hot the fans should activate cooling the system down. And, when the A/C is on the fans should also activate in order to cool the condensate so the A/C would work.

When you are driving, the movement of the vehicle throught he air is providing enough air flow to keep things cool and functional.

I would check the radiator fan fuse or fuses first. If those are OK I would try to run the fans with 12 volts and a ground that I supply just to see if the fan motor(s) actually run when powered. If the fan don't run when powered then the fans are bad and will need to be replaced. If the fans do run when you power them manually, then something is not allowing the power to activate, like a relay, control unit, or wiring.

It will take a little diagnostics, but it is not too difficult to chase it down.

May 03, 2011 | Pontiac Sunfire Cars & Trucks

1 Answer

Heater on and working - temperature gauge normal. Heater starts to blow cold and temperature gauge goes to full hot and overheated coolant light comes on. Coolant overflow tank full and upper/lower...


one of two things could be happening... either the radiator is low on coolant or your thermostat is stuck (which if it is stuck you will have to replace) . But first let engine cool down, you need to check coolant level, squeeze one of the radiator hoses even if engine is cooled down to make sure there is little or no pressure in cooling system then remove radiator cap/coolant bottle cap to check level.by the way if it is low you will need to figure out why.. the obvious reason is a leak you may have to go to a shop and have system pressure tested to locate leak to repair.. good luck to ya.. hope this helps

Mar 20, 2011 | 2005 Buick Rendezvous

1 Answer

I am a female who drives a 2003 Nissan Bluebird Sylphy the temperature gauge keeps going up when in traffic and then suddenly comes back to normal. It goes as far as H sometimes


I use to have the same promblem too, but it was on a acura tl, maybe this help, your coolant might be low and when you're in traffic or driving, the coolant is being circulated and with low coolant level, it doesn't have enough to keep the engine cool. So check the coolant level on your resevior, and if so, add 50/50 coolant into your radiator via the radiator cap " The one thats say warning, caution do not open when hot" usually located infront of the car, if it is not there, it should be where you coolant resevior tank is at. See if this help, if not, could be more of a mechinical promblem such as the water pump which causes some mere hundred to fix.

Jan 18, 2011 | 2003 Nissan Sentra

1 Answer

On our 2005 Town and Country, the heater does not heat up for a long time, then it gets hot and then cold. Occasionally the temperature gage goes to warning light hot but this is about once every 3 to 4...


I assume you have checked the cooling system to ensure that first, that it is completely full of coolant (not just the overflow tank) and second that there are no leaks anywhere. Your description indicates either low coolant level and/or air locks in the cooling system. Only check coolant level when engine is cold. If it needs topping up, add coolant and then run engine at idle with heat control on full, until it reaches operating temperature, topping up as necessary. Allow cooling fans to cycle on and off a few times to ensure all air is purged from system. If coolant was low, then check regularly when engine is warm to see if you can find where the coolant is leaking. The places where the hoses connect to the metal pipes around the engine are the most likely points of leakage or a hose could have weakened and split.

If coolant level is OK and there are no leaks then it could mean a faulty water pump.

Nov 26, 2010 | 2005 Chrysler Town & Country

1 Answer

My 2002 Oldsmobile Silhoutte's coolant gage running hot


Change the thermostat,and bleed the air out of the system,and make sure the cooling fans are coming on,and then going off,on there own,with the ac off,if this was helpful,please rate,thank you.

Jul 05, 2010 | 2000 Oldsmobile Silhouette

1 Answer

Ford Escort -1998 low temperature gage


Replace the thermostat, if that does not cure the issue you have a slight head gasket leak. I am a retired Ford dealer tech and this is what I have found causes this issue.

Dec 02, 2008 | 1989 Ford Merkur Scorpio

Not finding what you are looking for?
1999 Chevrolet Venture Logo

164 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75077 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7768 Answers

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

Answer questions

Manuals & User Guides

Loading...