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tims auto repair
tims auto repair, mechanic
Category: Dodge
Satisfied Customers: 15648
Experience:  owned repair shop for 25yrs
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Oil pressure does not come up right away, also at idle the

Customer Question

Oil pressure does not come up right away, also at idle the defroster or heat stop working
Submitted: 1 year ago.
Category: Dodge
Expert:  tims auto repair replied 1 year ago.

Hi, My name is ***** ***** for the delay.

I will do my best to assist you

what engine do you have?

please explain,,does the oi pressure ever go to normal?

when is the oil pressure low,when the engine is cold or warm?

when you say the heat stops working.are you talking about the blower?

Customer: replied 1 year ago.
Typically cold, 5.7 engine, pressure comes up and is normal, so it's when we start truck, it takes a few, on defroster, when idling at a light it will go cold, once we move its warm
Customer: replied 1 year ago.
it's defrost and heat will stop working at idle, ending pressure gauge is slow to come up
Expert:  tims auto repair replied 1 year ago.

ok

Expert:  tims auto repair replied 1 year ago.

after it has been ran for a while,the oi pressure does comeup when started?

Expert:  tims auto repair replied 1 year ago.

does the engine rattle when first started when cold?

Customer: replied 1 year ago.
Oil pressure stays up, no rattles or knocks
Expert:  tims auto repair replied 1 year ago.

i mean when you first start it cold and the oil pressure is slow to come up,does the engine rattle or make any noise?

Customer: replied 1 year ago.
Not really
Expert:  tims auto repair replied 1 year ago.

has the cooling system been worked on lately?

Expert:  tims auto repair replied 1 year ago.

how may miles is on the truck?

Customer: replied 1 year ago.
We replaced the heater core last year
Expert:  tims auto repair replied 1 year ago.

ok

how may miles is on the truck?

Customer: replied 1 year ago.
120k
Expert:  tims auto repair replied 1 year ago.

ok

i can give you my thoughts

first the oil pressure...

Expert:  tims auto repair replied 1 year ago.

you need to remove the oil pressure sender and install a mechanical oil pressure test gauge and test the oil pressure,,if the pressure is in fact coming up slow,i would thnk that you will need to remove the oil pan and clean the oil pick-up strainer,these were known to clog on these engines..if the pressure does come up correctly with the mechanical gauge,replace the oil sender

as for your heat...

Expert:  tims auto repair replied 1 year ago.

it sounds as if you may have an air pocket in the cooling system,this is causing the coolant not to move through the heater core easily..the air may have got in the system when you replaced the heater core..lets bleed the system this way

1-remove the radiator/reservoir cap when the engine is cold

2-start the engine and let idle

3-turn the heater on max

4-keep coolant on hand and add it as needed

5-spme coolant may gush out with the air

6-keep doing this until the engine is at operating tempeture and the heater is hot

7-after the coolant settles down and the engine is warm,,install the cap

This may take as long as 20-30 minutes

thanks

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