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Found 10 results

  1. Need Help Please!!!! I truly appreciate anyone that reads this long post. Hopefully someone can help me figure this out. Bought my 2017 Silverado CrewCab LT Z71 new. For 5 yr & 10 mo. the temp gauge sat at 210 with no issues and no variation. Then, in June 2023 the temp started rising about 10 degrees and would fluctuate from there back to normal. Thermostat was replaced, didn’t resolve the issue. Temp sensor was replaced, didn’t resolve the issue. Truck is well maintained, radiator/coolant flushes done a normal intervals with no issues found. Dealership has checked out this issue 3 times and says it’s operating as normal, temp fluctuation is normal. I have been calling BS on this since June, how is this normal? Almost 6 years with no variance but now it’s normal? So here I am in October, with continued temp issues that are anything but “normal” The temp gauge has progressively increased, the gauge goes up to 245-250 then will drop back down to 210 and fluctuates between 210 - 230/235 as the drive continues. Things to note: I have never had a Check Engine light, adding to the frustration. Coolant level doesn’t change, no leaks whatsoever. This temp issue does not happen when idling. I’ve idled for 20-30 min both from cold and after driving with the issue happening, no fluctuation. I have thought through some other possible issues but then wonder could it be “this” when the issue is not consistent or throwing codes. Are the active shutters not opening / operating correctly, that should throw the check engine light Belt is loose, again should be a more consistent issue with sounds and other functions having issues. Water pump going out, again I think that would cause more consistent issues and would overheat the engine. Fan(s) going out, wouldn’t that be more of an issue when idling vs driving and would be a more consistent issue. Could this be some other sensor, relay, electrical issue. Any help, experience, and/or suggestions you have on this issue are greatly appreciated.
  2. Back in May my 2015 Silverado dropped a lifter. I sent it to a shop and had a BTR stage 2 cam installed and since I've gotten it back it has had overheating problems. It had slight overheating problems before but never over 215 F-220 F. Fans do come on with the AC in low and once it starts getting warm they kick on in high. My issue now is its had a new water pump, temp sensor and thermostat put in and it runs 220F to 230F regularly. planning on buying a radiator before long and giving that a shot. Any advice would be greatly appreciated. truck.heic
  3. 06 Silverado 2500hd 6.0 My Silverado is getting really hot while towing up hill, to the point that the "Engine Coolant Hot" light is coming on. (Which I stop and let it cool down). This has gradually gotten worse. Truck does not get hot while towing on flat terrain. Any ideas?
  4. Have a 2014 4.3 Silverado with around 180k miles. About two weeks ago I noticed that whenever I’m driving (any speed) and press the gas pedal halfway or more for about 5 seconds I notice it starts to go from normal 210° to around 220° once I start to see it go up I let off and it goes back down. I could let it idle with the ac on and it’ll never go past 210 only when I step on it even with the ac off. The coolant is always at the top, the fans turn on when the ac is on , I haven’t seen any leaks, the radiator hose is hot after driving and radiator doesn’t have too much build up on it from the outside . I’ve replaced the thermostat twice in the past year and a half because both times they went out and marked 0° the whole time while driving causing my fans to always stay on (I just disconnected the battery for 10 min and after it would only mark around 100° but I only did it so the fans wouldn’t turn on, and It ended up being the housing) I also don’t think it’s the thermostat because otherwise it would go up and down like the other times And it only goes up when I know it will (when I floor it a little bit). Any idea what it could be?
  5. So just this past friday one of the heater hoses blew on the way to work. The next day the thermostat and the hose were replaced, with no leaks of any kind thereafter. Fast forward to Monday afternoon, after nearly 50 miles in over 100 degree weather the truck is fine, but on the way home I got off the highway and was at a red light. That's when the truck began to overheat again, going all the way past the 3/4 mark. I made it to a gas station and it cooled off slightly as I pumped gas, but was barely able to get home. So later that night the fan clutch was replaced because it seemed like it wasn't cooling at slow speeds or during idle. Another fast forward to today, Tuesday, when it ran another seemingly perfect day in highway, city streets, and some more highway, I was pretty upbeat! And then.... nearly the same thing happened! I was pretty close to home when the temperature needled starting rising little by little. I pulled of the highway and began to take the streets because I didn't want to be stuck in rush hour traffic with an overheating engine. So over roughly 7 miles the needle only crept to the 3/4 mark but stayed there consistently, so I thought that was a little odd. Having said all of that, what is your guy's opinion about this problem? I honestly don't know where to go from here. The water pump is about two years old, there aren't any leaks and the engine is completely fine as there aren't any signs of internal problems or water in the oil. When she's not hot she runs perfectly so I'm grateful for that. I hope you guys with more experience can help me out asap! I will really appreciate it. Javier
  6. Fellas and Gals! I am having a problem with my cooling fans not coming on my 2006 GMC Sierra, 5.3. I can force them on by running the A/C constantly. But if the A/C isn’t on, the fans won’t come on till the truck reaches almost 230 degrees F, which I’m on the road to cracking a head at the temp. I’ve already replaced the fans, thermostat, engine temp sensor, checked to make sure I’ve got good water flow through my radiator, I’ve replaced all three cooling fan relays and I’ve checked the wiring harness. The fans will come on when I reach in there and manually unplug the harness from the temp sensor while the truck is running and it sometimes will throw a code after that. The only thing I can imagine may be happening is the CPU is not sending the ground signal to command the fans to come on when the engine reaches the appropriate temp (≈ 202, without the A/C being on). Has anyone ever experienced the CPU messing up and not send a ground signal to the system, what am I missing? S.O.S. PLEASE SEND HELP!!
  7. Hey guys, i have a 2005 gmc yukon with electric fans. It is the 5.3 and the electric fans will not turn on. I have replaced the coolant temp sensor and the relays and it is still inop. If i send 12v to the fans they will turn on and constant power is getting too the two 4 prong relays my tools will not fit to test the 5 prong. None of the fueses are blown either and relays have resistance to them. It has a slight hickup on startup but not much of one and sadly no they do not work with the ac on the temp will go straight past 210 when parked
  8. While pulling our 2013 drv mobile suites 36tksb3 5th wheel up interstate 70 headed into Denver we overheated about 1/4 mile from the summit. We pulled over and let the truck cooldown and then proceeded to finish the climb into the tunnel. Once in the tunnel we allowed the truck to coast down hill, but the truck engine temperature continued to increase until we receive the warning "Losing Power Shutoff Engine". The ambient temperature was 55 F., windows down, air off, and coasting downhill in a tunnel, and the engine shut off. With no power steering or brakes I coasted thru the tunnel and took the first exit which luckily was not a sharp turn, and there was a nice large spot to stop at the bottom. The truck operated fine on the rest of the drive to Davenport, Iowa, but since it needed a fuel filter change I took it to the local Chevy dealership. That was a week ago and they can still not tell us why it overheated, or if there is a problem we need to have fixed. They appear to be lost and trying to solve the check engine codes they found which do not appear to have anything to do with the engine overheating and shutting off. I understand we are pulling a heavy load, but I did not expect the truck to overheat with a 55 F ambient temperature. I was traveling in the slow lane, about 40 mph, and in the tow/haul mode. Does anyone have any suggestion? I am thinking about picking up my truck as it appears this dealer does not have any idea how to fix my problem.
  9. I have a 2007 Tahoe 2wd, 5.3L. The transmission gets hot, 190-200 degrees F, only when in overdrive. If I shift down to 3rd, the temp will start to decrease. Has anybody had this problem before or know of any solutions? Thanks.
  10. My Suburban was suddenly overheating whilst driving it. Does anybody know if the '07 Chevy Suburban LT have an electric fan? However, I do know that my '07 Silverado (VortecMax edition) has an electric fan.
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