PDA

View Full Version : Somethings wrong



Xibit
11-30-2008, 09:27 PM
My car has had some recent overheating issues, it used to leak coolant like crazy and I recently replaced the rad and fixed that problem, but there is more. I can drive my car anywere in town for pritty well any length of time without a problem but when i go on the highway at speeds of 80-90km/h after about 15 mins or so my car starts to slowly overheat and hit the Hot zone, I cant figure out why. I stop my car and my overflow resivour is steaming and bubbling? My coolant is slowly leaking out of it somewere i think but I just dont know whats wrong with it at all. I cant go on a trip without that fixed. Any help?

puppy
11-30-2008, 09:48 PM
question for ya.....do u have the proper flow going through the rad? could be a blocked heater core...thermostat could be faulty..ie.stuck closed i do believe but if i am wrong someone correct me...a rad hose could of collapsed internally.....could be a variety...

deanoo28
11-30-2008, 10:23 PM
what kind of car is it?

J*B
11-30-2008, 11:52 PM
Also the water pump could be suspect..

Xibit
12-01-2008, 11:43 AM
its a 99 dodge neon, i always supected the thermostat, they are not expensive i could replace that

Timbit
12-02-2008, 10:36 AM
its a neon....i wouldn't be surprised to see a blown head gasket.....very common on these cars....

also, troubleshoot properly and fix the issue the first time, don't go replacing parts you don't need, otherwise you will spend huge$$$$$$

Xibit
12-02-2008, 08:25 PM
Wouldnt it overheat right away tho if it was a head gasket?

Anapeg
12-02-2008, 10:34 PM
Remove the rad cap and run the engine up to operating temperature. Look in the rad when warm , if you see bubbles you likely have a head gasket gone. If you have copious amounts of white ( sweet smelling ) exhaust, you likely have a head gasket gone. With the cap off and the engine at operating temperature there should be periodic but definite movement in the coolant.
Make sure your coolant is up to strength and not freezing at highway speeds. At highway speeds the coolant can and will jell and therefore not flow.
You might also have a problem with a plugged radiator, either interior or exterior. Exterior you can reverse flush with a garden hose and good pressure. Simply wash from the engine compartment toward the outside.
If you suspect an interior restriction you will have to purchase a quality rad flush and follow instructions. When you do this keep two containers of ALUMASEAL handy just in case you cause any leaks.
Replace the rad cap and watch the upper and lower rad hoses and assure they don't collapse thereby creating a restriction.
Failing all of this you may have a vapour lock. Your water pump was created to pump water not air. When an air pocket reaches the impeller it ceases all movement in the cooling system.
Your assumption regarding the thermostat is not unwarranted either.

corn316
12-02-2008, 11:46 PM
when was the water pump and timing belt changed they are supposed to be changed together as the pump is runed by the timing belt and it is a 4hr job to change them both

Barry Morris
12-03-2008, 09:24 PM
Wouldnt it overheat right away tho if it was a head gasket?

No. BTDT.

Xibit
12-04-2008, 01:40 PM
if it helps i also loose all my heat in the car when it starts to over heat and it takes a long time to kick in in the morning and also when the car is stopped the heat gets cold when im on the gas its warm??? i dont get it

Anapeg
12-04-2008, 02:54 PM
That is indicative of restricted coolant flow. This could be caused by a worn impeller, loose drive belt, or low coolant.
You make it difficult to help as you don't let us know what you are, and are not trying. Without seeing the vehicle it's hard enough, but if your going to keep any and all information 'classified', our collective hands are tied.

Xibit
12-04-2008, 05:42 PM
Lol there is no more classified information and tonight my friend is coming to help me with the long post you replied to see if that works

Anapeg
12-04-2008, 09:14 PM
Giterdun!

deanoo28
12-04-2008, 10:20 PM
My guess would be head gasket leaking on #1 cyl allowing exhaust gas to pressurize the cooling system.

corn316
12-05-2008, 12:47 AM
That is indicative of restricted coolant flow. This could be caused by a worn impeller, loose drive belt, or low coolant.
You make it difficult to help as you don't let us know what you are, and are not trying. Without seeing the vehicle it's hard enough, but if your going to keep any and all information 'classified', our collective hands are tied.

drive belt for the water pump is the timing belt if it was lose there would be a timing issue with the car

Xibit
12-05-2008, 01:58 AM
where is the belt drive for the water pump located?

Anapeg
12-05-2008, 08:04 AM
I thought the Chrysler four cylinders had an auxiliary drive on the back, top of the engine for the water pump? (immediately over the transmission)

Anapeg
12-05-2008, 08:08 AM
If you decide to change it remember to purchase new head bolts along with the gasket set. The old bolts will be stretched and won't torque down properly.

corn316
12-08-2008, 12:53 AM
nope most cars now that have a timming belt runs the water pump as well so ppl will change both at the same time for better preventative maintnece wich i think is good but on the down side is to make money by changing both at the same time