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Nairaland Forum / Nairaland / General / Car Talk / 5 Symptoms Of A Defective Radiator Cap And The Best Test Method (8881 Views)
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5 Symptoms Of A Defective Radiator Cap And The Best Test Method by Godspower35(m): 2:11am On Mar 13, 2019 |
The part of the vehicle called "radiator cover" contains 2 valves. Its purpose is to store the coolant and ensure that the radiator system remains under pressure. The inside of the cooler contains 16 pounds of pressure per square inch. This pressure is controlled by the radiator cap and must remain constant. Otherwise, your car could overheat and the radiator could suffer serious damage. You will find more information on the radiator cap below. Signs of a defective radiator cap Some signs will tell you if your radiator cap is broken. Here are the top 5 signs. 1. Leaking coolant If the radiator cap is stuck, no liquid can be released. This creates pressure in the radiator, causing the hose to leak or break. If you notice coolant near the radiator or its cap, the coolant flows clearly. Check if the radiator has holes or if the plug is worn or damaged. If so, replace the cap. 2. Overflowing tank Coolant enters the tank as it expands. The radiator cap is released by the pressure and the coolant is directed into the overflow tank. If the radiator cap is broken, the coolant will be released too quickly and the boat will overflow. 3. The radiator pipe collapses The radiator cap may be defective if the radiator hose collapses. The radiator cap does not release the vacuum properly and the radiator pipe collapses during the cooling phase. If this happens, check the cap for damage. If so, replace it immediately. 4. Air in the cooling system If the radiator cap does not close properly, air will enter the refrigeration system. Air pockets enter the radiator, thermostat and radiator. As a result, the engine overheats because it can not withstand a constant temperature. 5. Overheated engine Leakage of coolant or air in the cooling system may cause the engine to overheat. If you notice that your engine is heating up too much, do not look under the hood unless you have turned off the engine. This allows the engine to stay cool during the check. If there is coolant near the radiator cap, the pressure cap may be damaged. Check this and replace it if necessary. Inspect the radiator cap If you have a radiator pressure tester, you can check the radiator cap yourself. Start by opening the hood and locate the radiator. It should be located directly in front of the vehicle engine. Now, remove the radiator cap by pushing it in and then turning it counterclockwise. Take the plug adapter and screw it to the end of the pressure tester. Keep turning until you can not screw it. If you do not know what the cap adapter looks like, check the label on the pressure tester package and see if it is displayed on it. You can as well do a research work on the Internet. After attaching the plug adapter to the pressure tester, remove the radiator cap and screw it to the other end of the tester until it is securely in place. Source: http://www.eliancars.com/2019/03/5-symptoms-of-defective-radiator-cap.html [img]https://3.bp..com/-1OS1EuMjdq0/XIhUf50pxHI/AAAAAAAACKE/mMoxLbo0NiU3eFoHbu5hmobzkArRjs9WACLcBGAs/s320/radiator%2Bcap.jpg[/img] 3 Likes |
Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by tobechi20(m): 2:51am On Mar 13, 2019 |
Be careful when opening it, the hot water can burn uoooo 4 Likes |
Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by filleSouriante(f): 11:06am On Mar 13, 2019 |
The guy above me stole my FTC ![]() |
Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by ogawisdom(m): 11:08am On Mar 13, 2019 |
As a precaution change every year it's inexpensive 2 Likes |
Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by pautex: 11:15am On Mar 13, 2019 |
OP take your time this morning oo. Man dey think of where to get food from this morning u dey talk about defective radiator part no be who get the money dey buy motor ![]() 5 Likes
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Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by coolestchris(m): 11:16am On Mar 13, 2019 |
Wetin concern me, if I service my car periodically I should be good |
Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by honyham: 11:17am On Mar 13, 2019 |
God bless u for write up am battling with the issue of radiator in my car |
Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by hotel2018: 11:32am On Mar 13, 2019 |
thanks for the info ![]() |
Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by MicroBox: 11:39am On Mar 13, 2019 |
This info is truly helpful. Was working on 27KVA Mikano and each time the hose will collapse/compress . Never thought it could be the radiator cover. I was advice to cut iron pipe and put into the hose which I actually did thinking maybe the hose is weak. Thanks for the info anyway. Lastly people should be careful with car mechanic that are always fond of saying "e no mean, oyinbo just put it there" everything have reasons why they are in-cooperated into any design. 2 Likes |
Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by speaker2018: 11:41am On Mar 13, 2019 |
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Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by people2018: 11:47am On Mar 13, 2019 |
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Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by wizkidblogger(f): 11:55am On Mar 13, 2019 |
nice info. I need new cover oo |
Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by Godspower35(m): 11:57am On Mar 13, 2019 |
U can contact me through my site |
Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by Godspower35(m): 11:57am On Mar 13, 2019 |
Contact me through my site |
Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by cipup23: 12:28pm On Mar 13, 2019 |
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Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by Burgerlomo: 12:38pm On Mar 13, 2019 |
tobechi20: Yah head correct jawe, I don't know the reasons why the OP didn't mention that fatal warning ![]() |
Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by maxiuc(m): 12:51pm On Mar 13, 2019 |
Pls Help me oooooooooo My Lexus is overheating very fast it warms up Very fast especially when the AC is on the overheating becomes worst secondly it dries up water and coolants pls what could be the fault I have changed the Radiator and taken it for different assessment yet it continues The model is es330 2005 |
Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by Nobody: 1:21pm On Mar 13, 2019 |
love the design used on vw and audi cars, hardly leaks, cap is made of plastic, so you dont worry about burning your fingers. |
Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by Godspower35(m): 1:40pm On Mar 13, 2019 |
maxiuc: |
Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by Godspower35(m): 1:41pm On Mar 13, 2019 |
wizkidblogger: |
Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by paix(m): 3:18pm On Mar 13, 2019 |
pautex:Don't worry my dear. God is in control. You shall eat to your full and car you shall own, by God's grace. |
Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by Chuks9000: 6:17pm On Mar 13, 2019 |
Thank you |
Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by ikdaddy01(m): 6:40pm On Mar 13, 2019 |
Travelling from SE to North Central I woke up by 4am and did final check on my machine. Then started the journey. All was going well. I was happy. No shaking. Overtaking anyhow. I need to reach b4 ××pm. Half way, after After Nsukka and Orukam I noticed the acceleration was dragging. To climb hill na wahalla. At kick down I would hear cranking noise like its coming from the chain or ka ka ka ka ka ka as if i was using wrong gear to climb hill or overtake. I reduced tempo. My mind went to oil leakage or something. I checked all lamps and indicators, they were looking well. I stopped to accelerate to check if the oil indicator will blink (For lack of oil) ...nothing. I kept moving. I had the mind to check hood in the "NEXT" filling station. As i reach i will pass. Thats how i kept passing every station planning to stop at the next one...just to keep moving. Time no deh. Low and behold my temp gauge just climb viaaaaa....to 120. My mind cut. Top cylinder ooooohhh. Engine block oooh. At 120km/h I switched off the car making sure to stop at the key 1st step (before the steering lock). As the engine went off I switched the key back to ON So the fans will keep blowing while the engine is off and incase I need to apply emergency brake. I was still wondering what could be the fault in this my zero fault car. Long story short, as I opened the bonnet......CHAIIIII The radiatorI cap was just lying near the plastic fiber. I DIDN'T FIX IT BACK when i was checking the car in the moring. All the water Don do voom viam from the radiator. 30 minutes was taken from my time looking for pure water and waiting for the engine to cool. The rest is now lesson. 2 Likes |
Re: 5 Symptoms Of A Defective Radiator Cap And The Best Test Method by connkg(m): 11:18pm On Mar 13, 2019 |
@ikdaddy01 Great lesson. Little things. I have learnt to stop at the next convenient place after driving in the rain, coming back to Lagos from a wedding at Ogbomoso. Visibility got so poor that I kept switching cars to lead me. I didn't stop, just kept wondering why my lights were that bad... That's until I was washing the car after Sunday Service the following day. The headlamps had a nice coat of dirt! Just one wet swipe and I wished I had come down to inspect in the rain. I'd have banged the car a lot less! 1 Like |
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