Motor Vehicle Maintenance & Repair Stack Exchange
Motor Vehicle Maintenance & Repair Stack Exchange

Questions tagged [flush]

The action to purge a system of it's fluid either by gravity alone or by using new fluid to displace the old.

The action to purge a system of it's fluid either by gravity alone or by using new fluid to displace the old.

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When is an engine flush a good idea?

I have heard really mixed opinions about the necessity of engine flushes. My quick research suggested that manufactures do not recommend doing them. In addition, I have heard of extreme cases of blown engines after engine flushes. My mechanic…
user3483880
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Brake flush vs. Replacing the brake fluid

Is a brake flush the exact same thing as replacing the brake fluid? Or is there a difference?
Amazon Dies In Darkness
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How to flush coolant with only access to expansion tank?

OPEL CORSA B Sedan 1.6 IE 1999. I would like to flush the coolant and bleed my brakes. For the coolant, I have bought German HEPU antifreeze, Anyways, I only have a reservoir bottle and I do not have a radiator cap.I have a garden hose and a…
LankymanX
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What is the average radiator capacity on 6 cylinder engines?

Yesterday I drained the radiator on a 99 Monte Carlo. Owner's manual states that it should take 11.6 quarts (2.85 gallons). I removed the petcock, flushed the system by running a hose into the top and running the engine. I ran the engine and…
raddevus
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Is it safe to flush it?

I've got a 1989 Chevy Cavalier sedan. 78,000 k. Previous owner let it sit for 7 years. I've drained and replaced the oil, fuel filter, hoses and such. But my coolant tank is completely encrusted in about 1/2 inch brown crust. Solid not muddy. I was…
RedHeadsDoItBetter
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How often and how thorough should a coolant flush be?

I have a 2005 Mazda Bounty UTE. How often should it have a coolant flush? I have since seen videos which suggests a flush should be a number of cycles of empty, new water, empty, new water, empty etc until clear. Then new coolant. Is that what a…
peter
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To switch back to regular oil (from semi-synthetic), do I have to (or should I) flush the engine first?

I have a 2017 Elantra (nine months old). At my first oil change, the dealership (without my knowledge or CONSENT) out in semi-synthetic oil (which is NOT required or necessarily recommended by the owner's manual.) I want to change BACK to regular…
Jersey Joe
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What is the difference between old engine oil and old gasoline and how it affects a car

This happened in the mid 1990s and something made me think of it right now. A family friend ran out of gas 3 blocks from his house. I think he was driving an early 1970s car (if that matters). He walked back home and got gas he said was in a metal…
Classified
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Using vegetable oil to flush engine of gunk

I've been told by a mechanic friend of mine that AFTER I've used engine flush I can put in vegetable oil, run engine for a short while then drain. He says that as the veg oil is sticky, it'll help remove more of the gunk that hasn't come out during…
Pete Atkinson
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What else should be changed if I already have the oil pan off for cleaning?

I have a 2005 Chevy Suburban 1500 4WD 5.3L with 187000+ miles. It has a really bad tapping/knocking sound. I think this is the infamous lifter knock, and was caused by infrequent oil changes and running low on oil about 100k miles ago. I am planning…
Nathan DeWitt
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Rubber pieces found in engine coolant

ISSUE: I found small pieces of rubber debris in the coolant. They are a little smaller than part of a fingernail clipping. The rubber hoses have flaking rubber when inspecting them on the inside. BACKGROUND: The vehicle is a Chevy Cruze with 175k…
NANfan
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How should I flush out a head gasket sealer?

I purchased a 2002 Ford Taurus, little knowing that it had a head gasket leak. After it was driven for a week or so it started overheating. I am assuming that the person that I bought it from put something in it to clog it up before the sale as it…
K. Murphrey
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Stuck in catch-22 trying to fix radiator leak

I'm trying to use a stop-leak solution to fix a leak in the radiator, but I'm stuck in a catch-22. The stop-leak instructions say to flush the coolant system if it is dirty or clogged. I don't know if it is, but I figured it couldn't hurt, and the…
Synetech
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Wrong kind of coolant?

My friend came to put coolant in my car and he was using the one I bought, it was a full concentration one for all colors which the guy at autozone told me to buy for my car; and he noticed a bit into it and then switched it out for the 50/50 one,…
Poisonox
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Coolant flush - didn't take specified amount of coolant

I did a coolant flush today on my 07 VW Rabbit. The car is supposed to hold 10 quarts of coolant, however both when flushing with distilled water and especially when adding coolant, the vehicle took way less than expected. With the coolant, it took…
Harv
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