My heater is not for a car. It is for in home use.

The heater core may have sprung a leak and depending on the vehicle could require the dashboard removed or only the glove box and center console to get at the blower motor heater housing

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Hi,here's a link to a repair guide for your heater core. SAVE 15 ON ONLINE SHIP TO HOME ORDERS OF 100 OR MORE Also something else to check is your thermostat,if the heater is blowing out cool air when heater is on,then your thermostat could be stuck open and not letting your coolant get hot to warm the cab.Here's a link on replacing your thermostat. SAVE 15 ON ONLINE SHIP TO HOME ORDERS OF 100 OR MORE

Here's a link on replacing your heater core. GET 25 GIFT CARD FOR EVERY 100 SPENT ON ONLINE SHIP TO HOME ORDERS Here's a new heater core. http://www.autozone.com/cooling-heating-and-climate-control/heater-core/spectra-premium-heater-core/mercury/grand-marquis/1977/8-cylinders-a-7-5l-4bl-ohv/491780_0_0

Any specially sized unit for a mobile home should be fine. Just make sure that the amperage and voltage requirements are the same so you do not have a wiring hassle.

hi would need more info make model engine cc and year and etc, and heater valve?

ONLY if the air intake is located on bottom so air can be drawn from under the mobile home
http://waterheatertimer.org/How-to-install-gas-water-heater.html#manufactured

-Or- if your water heater has power vent that draws air from outside, usually through side wall.

-Or- if your water heater is installed outside.... good for warm climates only

Otherwise ordinary store-bought water gas heater draws too much air from the space, and cannot work properly in a mobile home.

Gene

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

According to the literature I read, this heater requires a DEDICATED 240 volt, 60 amp service minimum. That means it should have its own circuit breaker with nothing else on that line. Depending on the overall electric service size for the building, the heater is causing an overload when it's on and resulting in a voltage drop that causes the flickering and possibly other issues.

You didn't say if this was a residential installation but if it is, most homes have a 100 amp 240 volt service (in the USA). The heater is using most of the home's power. If there are other loads on the service like an electric range or oven, the problem will be worse.

If the home is new, it may be equipped with a 240 volt, 200 amp service. If that's the case, the heater should be checkd with an ammeter to be sure it is not over-drawing for some reason like under sized wiring, bad connections or contaminated heating electrodes.

you can use a residential water heater, just make sure it's the correct amperage/power draw for your circuits.

check coolant level,could be heater core you may have a leak,it can drip onfloor,or inheater assembly