![]() In fact, a knock or pinging noise can often be heard before the Check Engine Light illuminates.Īs the EGR temperature sensor fails, issues are caused by the system’s flow. No one ever wants to hear engine noises, but this is one problem that is common with the bad EGR temperature sensor. If you aren’t sure what the trouble code means, it’s easy to look it up online. You will need to scan the system with an OBDII code reader because many faults can cause the Check Engine Light to come on. However, a Check Engine Light alone isn’t going to tell you that the EGR temperature sensor is failing. If the EGR temperature sensor is going bad or malfunctioning, the system will try to get your attention by illuminating the Check Engine Light on the dashboard. When the engine computer notices a problem with any of the signals or sensors, the warning light is going to illuminate. Here is a more detailed list of the signs of a bad or failing EGR temperature sensor to look for: 1. However, some people don’t know about the problem until the emissions test is failed, showing the system isn’t working as it should. It also leads to engine noises, such as knocking or pinging. I watched them put it in and in less than 10 minutes that tank dissolved all that gunk!īoat runs at normal temp all the time since I had that HE cleaned.Clean the EGR Temperature Sensor Symptoms Of A Bad EGR Temperature SensorĪ bad EGR temperature sensor causes the Check Engine Light to come on. The only way I could get it clean was to take it to a Belfor shop (the property restoration co.) who had a sonic cleaning tank. These heat exchangers are nearly fully enclosed and only have these big holes at each end of its 14" length. When I took the heat exchanger out, what I found is in the first pic! The cooling tubes were caked with this gunk! The second pic is after I had it cleaned. I bought my 2007 boat used in 2014, and it always ran hot. ![]() A lot of people didn't know you couldn't mix the two, and just topped off their engines with EG every so often. I have a sailboat with a Yanmar diesel, and in the early 2000's Yanmar started using DexCool in all their new engines. I was too lazy to look it up!įWIW, here's what happens when you mix DexCool with regular ethylene glycol. Thanks for the clarification and link to the thread Cellsafe. Would appreciate any input or feedback anyone can provide on this. I would like to recommend my mechanic replace the temp sensor and maybe the thermostat as well since he will have it accessible. And since we have seen this issue right after starting the car, I don't feel I am at risk of an overheating situation. My thought is that its truly an indication issue and since the car is not getting a good temp indication it is simply going into a "protective" mode with the electric fans/A/C disable. Although, I don't feel it has anything to do with outside air temps. ![]() After the initial time this occurred a year ago, it didn't happen again through out the colder winter months but since have had it occur 2 or 3 times. Then while driving, it will just indicate normal operating temp, fans shut off, etc. ![]() To give you all an idea of how intermittent this is, it might happen while driving (temp gauge drops instantly to full cold) or it might happen after first cold start of the day, gauge never comes off full cold and electric fans are running/no A/C etc. Took the car to my local mechanic and of course he was not able reproduce the issue and was hesitant to simply replace the sensor without an error code or being able to reproduce the issue. I purchased a fairly reasonable engine temp senor but only to find its not an easily accessible part to replace. Also note there are no check engine lights or fault codes logged. Engine coolant temp gauge will not come off full cold indication and during this time the engine electric fans are running and air conditioning disabled/not working. This first occurred about a year ago and lasted a couple weeks (on and off). Hoping someone else might have experienced this in the past and can help point me in the right direction and maybe confirm my thoughts. The issue I have been dealing with is related to my 2016 and an intermittent engine temp issue. I have 2 Camaros, the first is a 1982 Z28 that my wife and I have had since 1986. Of course, if there is a more suitable thread to post this to, please let me know.įirst of all, love these forums. Hello all, first time posting to this forum.
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