Q: I have a 1995 dodge ram 1500 with a 5.9 L Magnum and it is making this weird noise that started after a heater core exchange

asked by on

Yeas I was getting this gurgling noise from my dash so changed the heater core now my engine reads cold all the time an is now making this electrical type noise from the top side of my engine and it has had I think would be considered a miss fire but I can't seem to trace it also this weird vacuum type noise when I accelerate as if the intake gasket is bad but just changed that and plenum gasket four months ago and it just don't seem right to me at all it don't feel safe either but I still drive it I have no vacuum lines cracked wither

My car has 287854 miles.
My car has an automatic transmission.

Hi and thanks for contacting YourMechanic. First find all of the vacuum lines that are cracked and replace all of them. Then check the heater control valve to see if it has a vacuum leak on it. With the heater off, the valve should be off and shutting the flow to the heater core off and redirecting the coolant back to the engine. Check the coolant hoses to see if they are all the same temperature with the engine at operating temperature. It is possible that the valve has stopped working and is allowing coolant to pass through the heater core making the coolant temperature lower since the heater core acts as a second radiator. The misfire on the engine could simply be a vacuum line split and causing all of the problems. If all of the vacuum lines are replaced and the engine still misfires, then check the distributor cap, rotor, plug wires, and spark plugs for any wear and burn spots. If there is, then I suggest performing a tune up to fix the misfire. If you need further assistance with your vehicle, then seek out a professional, such as one from YourMechanic, to help you with your coolant temperature and engine misfire issues.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. I have a 1995 dodge ram 1500 with a 5.9 L Magnum and it is making this weird noise that started after a heater core exchange

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: How do I use the engine block heater in a 2012 Nissan Altima?

If your car is equipped with an engine block heater, this is an important safeguard to use during severe cold weather. Here’s how to use it (if your car is equipped with one): Make sure the engine is off....

Q: Q: Rough idle and engine stalls out.

A rough idle may be caused by many different things such as low fuel pressure, low voltage to the fuel injectors, dirty fuel injectors, a vacuum leak, a faulty Oxygen sensor or a dirty or failing idle air control valve....

Q: Whining from timing area after water pump was replaced

Noises are often a point of contention in automotive repair. There is a phenomenon we humans all exhibit, mechanics included, where we become ultra sensitive to our cars after they have been worked on. I'm not stating this is what...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...