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Rheem PowerVent 42VP75FW 2011 install. If tank water cold, can turn it off/on to heat. But won't maintain temp-tries twice. Blue light error and then wait hours before turn off/on again for restart.

Have cleaned out bottom. Have replaced entire gas regulator. Have replaced sensor.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

Shouldibuyit
  • 44 Answers

SOURCE: smelling gas when just filled up tank on Ford Focus 2000

Now, in the past year, when I fill the gas tank, I can smell gas fumes inside the car (remember, it's a wagon).
I have a lot of customers that run into this problem and get the same answers from the dealers.
Given the age of the car and that it has been in a accident, here is what I would look for first.
1. First, because of the accident I would look to see if all the work was performed properly around the gas tank. Check the filler neck to make sure that all hoses and clamps are tight and in good shape, if cracked or it has any bad spots in it, replace it. The tech. that repaired the car could have missed something by accident; this is always a good place to start with by double-checking the work that was done.
2. I've had the Fuel Pump replaced twice due to recall. Another possibility, when they installed the fuel pump they may not have put the seal in right or it could have slipped. There is usually a rubber ring that goes between the tank and the pump and it might have moved during installation. When you fill the tank to the top it may come out because the seal slipped out of position.
3. I'm not sure on this model but on a lot of the newer cars they have been mounting the charcoal canister in the quarter panel next to the fuel neck but it may be hidden behind a plastic cover. The charcoal canister may have been damaged from the accident or it could just be defective and when you fill the tank up it may be going into the canister and fumes are coming from it or gas may be leaking out of it.
4. I have found that some of my customers have been over filling the tank trying to put as much as they can squeeze into the tank, this is not a good idea. When it gets hot outside, the gas expands and has no where to go except into the canister or lines of the canister, this system is not meant to handle gas, it is only meant to handle fumes. You will smell gas if you try to over fill the tank. When you fill it at the station you should let it click off. Just try rounding it off to the fifty cent mark, (example: $10.03 only go to $10.50 not $11.00) this will help you to keep from over filling the tank and neck of the tank. Over filling the tank can clause damage to the canister and components in this emission system.
These are things that the average person with some mechanical knowledge can check out on their own. After this point, it will usually have to be looked into by a fully qualified tech. with good trouble shooting skills that can follow the flowcharts to find the problem.

Posted on Oct 28, 2008

  • 1 Answer

SOURCE: GMC 4.3 runs fine

EGR Valve

Posted on Dec 23, 2008

  • 1 Answer

SOURCE: heater starts to heat then afer a minute blow cold

water pump

Posted on Jan 18, 2009

  • 33 Answers

SOURCE: temperature/heat wont work/dashboard lights on and off

It sounds to me like you're low on coolant. When you checked the coolant level, did you actually open the radiator cap and make sure the radiator is full? The plastic tank you generally add coolant too is actually an 'overflow' or 'reserve' tank. There is a hose that runs from that tank to the top of the radiator so if the radiator gets low on coolant, more coolant -should- run in from the overflow tank. However in practice this does not always work. I have a Jeep that leaks coolant and experiences this exact same problem. Coolant will not run from the reserve tank into the radiator because the hose is plugged up, and whenever the radiator gets low on coolant the temp gauge will go real high and then drop, and the heater doesn't work well. This is because the cooling system of your car is supposed to be a closed system, full of coolant and no air. When coolant leaks out, the space it used to occupy is now occupied by air, which does not transfer heat well. When 'air' is passing through your cooling system, no heat can be transferred from your engine to the heater and radiator, resulting in a hot engine and no heat at the heater. Then when a pocket of water passes through the system, the temperature gauge quickly falls as the water absorbs the heat from the engine. The hot water that cools the engine is where the heater gets it's heat from as well, so when water passes through the heater core, the heater works, but when it's filled with air, it doesn't.

Posted on Feb 12, 2009

emissionwiz
  • 75066 Answers

SOURCE: '08 silverado. dash board diplays, engine running

P0128 OBD-II Trouble Code Technical Description

Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
What does that mean?

This means that the engine's PCM detected that the engine has not reached the required temperature level within a specified amount of time after starting the engine. The intent of the P0128 code is to indicate a faulty thermostat. Similar codes: P0125

In determining the engine did not reach a "normal" temperature, it takes into account the length of time the vehicle has been running, the intake air temperature (IAT) sensor reading, the engine coolant temperature (ECT) sensor reading, and the speed of the vehicle.
FB.init("dd7d9e9681341cde77587bc6a2029f6f"); OBD-Codes.com on Facebook Symptoms

You will likely not notice any drivability problems other than the MIL illumination.


Causes

A code P0128 may mean that one or more of the following has happened:

Possible Solutions

Past experience indicates that the most likely solution is to replace the thermostat. However here are some suggestions on troubleshooting and repairing a P0128 OBD-II code:

  • Verify coolant strength & level
  • Verify proper cooling fan operation (check if it's running more than it should). Replace if necessary.
  • Verify proper engine coolant temperature (ECT) sensor operation, replace if necessary.
  • Verify proper intake air temperature (IAT) sensor operation, replace if necessary.
  • If the above items check out good, replace the thermostat


Posted on Oct 26, 2010

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