Cars & Trucks Logo
Posted on Jul 19, 2012
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

1988 b2200 is overheating--we've changed out the lower radiator hose, thermostat, and the upper hose is fine. Why is it overheating? Radiator, heat pump, or water pump?

2 Answers

Anonymous

Level 1:

An expert who has achieved level 1.

MVP:

An expert that got 5 achievements.

Habit-Forming:

Visited the website for 3 consecutive days.

New Friend:

An expert that has 1 follower.

  • Contributor 10 Answers
  • Posted on Oct 29, 2012
Anonymous
Contributor
Level 1:

An expert who has achieved level 1.

MVP:

An expert that got 5 achievements.

Habit-Forming:

Visited the website for 3 consecutive days.

New Friend:

An expert that has 1 follower.

Joined: Oct 29, 2012
Answers
10
Questions
4
Helped
6729
Points
31

!st check and make sure the water is flowing in the radiator, then check
the timeing, Mazda will run hot if the timeing is rong.

danoyachtcap

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.

  • Mazda Master 2,907 Answers
  • Posted on May 09, 2015
danoyachtcap
Mazda Master
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.

Joined: Jun 17, 2011
Answers
2907
Questions
4
Helped
1275930
Points
52081

If your engine is overheating, Try this procedure:

  • Dirt and debris can get lodged in the radiator air flow paths. This can block the radiator and cause your engine to overheat and damage the engine.

  • The thermostat can be stuck close. If you feel the upper hose very hot and the lower hose cooler than normal, it may be a stuck thermostat.

  • Make sure the radiator and the overflow bottle are filled to the proper levels.

  • Bleed air from the coolant system:This is best done by running the engine with the radiator cap off until you see when the air bubbles stop coming up.

  • Check the radiator fans: The easiest way is to turn on the cars air conditioner and turn up the A/C fans. Both radiator fans should come on when the A/C starts

  • Make a pressure test by using a pressure testing tool (available at most auto parts stores). Use the pressure shown on your radiator cap. Most cars are 16 PSI or less, so don't exceed that pressure. Replace the radiator cap if it doesn't hold the pressure.

Ad

3 Related Answers

Anonymous

  • 172 Answers
  • Posted on Jan 09, 2010

SOURCE: 1988 mazda b2200 a little hose is leaking from the

This is going to be a thermostat bypass gose, which allows some coolant to bypass the thermostat while the engine is coming up to temperature.

Ad

Anonymous

  • 977 Answers
  • Posted on Jul 21, 2011

SOURCE: 1999 Protege overheating. Changed thermostat,

if your vehicle has electric cooling fans it could be that they are not working,if this is the case when you are on the freeway you don't need the cooling fans you only need them when the vehicle is not moving as there is no air going through the radiator to keep the engine cool......hope this helps......cheers.

Anonymous

  • 1509 Answers
  • Posted on May 14, 2011

SOURCE: My Mazda MPV 1995 is

Nornally the hose will warm up but not hot with a circulating system. the therostae could be installed upside down or be bad. You should install a therostate with a asprin holding it open to circulate the coolant till the cooling system is full and the asprim will disolve as it soaks in the coolant. the air will ciculatre to the top and out and the systrem will be full. the stat will work corectly after the asprim is gone. with air around the stast it might not open and therefore overheat.

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

0helpful
2answers

Why is my car overheating?

You might have a clogged radiator. If so replace the radiator. I would first replace the thermostat as it might be bad. When they go bad they usually stay stuck in the closed position. When closed there is no flow of water to or from the radiator. You can check the thermostat by removing it, it is located on your upper radiator hose, the return hose. To check it boil a pan of water and and using a pair of pliers hold the thermostat in the hot water. If the thermostat is bad it will not open. Hope this helps.
0helpful
2answers

1998 Pontiac Firebird 3800 V6 overheating

did you check your radiator to see if it needs to be replaced?
If it is the original my be clogged.
the no heat did you check the flapper door and dash control to see if they are working?
0helpful
1answer

1999 grand prix gt overheating. Changed thermostat, water pump, upper radiator hose. Please help!

does the upper and lower hoses seem to be the same temp when car begins to overheat? ore the radiator cooling fans coming on before the car overheats? did you pressure test the cooling system and radiator cap? also may want to remove the lower hose and flush the radiator. is the check engine light on and does it run bad?
0helpful
1answer

1990 z71 keeps overheating, pull over and overflow will be empty when i just filled it, i remove the coolant cap and release the pressure, runs fine then gets overheated again!

1- simple test- with a COLD engine- remove radiator cap- start engine - idle till at temp- look in radiator- is it bubbling? if so - head gasket or cracked heat- if not-2
2- change upper and lower hose and your thermostat- hoses can crush restricting water and thermostats fail in closed position can do it to
0helpful
1answer

Ok, g35 coupe 06,52k miles Had over heating problem in april 2010,replaced thermostat, all's well. Now Jan 2011 overheating again, noticed upper & lower radiator hoses collapse, changed thermostat...

Heres a couple of things you can check. Start your car and remove the radiator cap,(before it gets hot mind you) when it reaches norm operating temp, look inside radiator to see if water is circulating. If its not moving, its a bad water pump. Also, youre hoses should never collapse, if they collapse when they get hot maybe you need new hoses? Finally, if those dont work, flush out your radiator. Open the bottom cockpit and use a garden hose and let it flush out the system while the car is running, about 10 mins should do the trick. If the radiator looks clean inside then it doesnt need flushed.
0helpful
1answer

Engine was overheating need to know if a tube is supposed to go from the radiator to the engine coolant

you should have one upper radiator hose, one lower radiator hose, a small diameter hose that runs over the top of your radiator starting from the radiator cap going left across the top and then to your coolant reservoir and another from your thermostat housing to the firewall for the heater core the upper radiator hose should also go to your thermostat housing. the lower radiator hose goes to your water pump This hose routing is only for a 4 liter straight 6 I'm not sure about the V8 or the 2.5 liter motors
0helpful
1answer

1988 mazda b2200 a little hose is leaking from the thermostat housing to im guessing water pump. the hose is skinny n shorter than the hose from radiator to therm housing. what is this called?

This is going to be a thermostat bypass gose, which allows some coolant to bypass the thermostat while the engine is coming up to temperature.
3helpful
1answer

Heating problem

If you changed the thermostat yourself and have noted that the lower radiator hose is cooler than the upper radiator hose, you may have installed the thermostat incorrectly or have purchased a faulty thermostat. A lower radiator hose that does not get hot (or as hot as the upper radiator hose) is a direct indication of a faulty thermostat. Please vote for this solution if you found this to be helpful. Thanks,
Not finding what you are looking for?

1,418 views

Ask a Question

Usually answered in minutes!

Top Mazda Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

15088 Answers

Arnie Burke
Arnie Burke

Level 3 Expert

7339 Answers

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

Answer questions

Manuals & User Guides

Loading...