C_DirtyTwo

So, after about a month of trouble-shooting, code searching, and sleepless nights....

I found the problem today!

Finally got a code for it, and my IC pump needs to be replaced. I put the Johnson CM30 pump on roughly 25k miles ago, and its done?

Has this happened to anyone else? I thought the Johnson was supposed to be Bigger and Better than stock?

TemjinX2

i had mine for around 40k and its still going strong.

Autotechnica

It's still a mechnical part and there's no given set time when something will fail. You have to understand that everything is still man made, and nothing is perfect. I was in the saltwater aquarium business for a long time, and I have a lot of experience with marine pumps (which is what the Johnson pump is). Reguardless of brand names and how well built they were, I still get a crap load of pumps that fail prematurely. Does Johnson offer any warranty on their pumps? I've had my CM30 in my car for about a month now.

Bry

Piraya33

When you take it off, take the pump apart and see if there is something like dirt or other particles that could have taken the pump out. I am about to replace my stocker with the CM30 pretty soon.

loungn14

replaced a ton of pumps at the shop and have seen 1 or 2 johnsons fail. But, both times when we took the pump apart there were contaminates there. One of the pumps has the fins missing, and hence sounded like it was working, but not moving any fluid.

C_DirtyTwo

thanks for the advice guys....As soon as I get some time I will be taking it off to see whats the deal with it and replacing it with another Johnson and a bigger heat exchanger...

I am looking at the PLM Heat Exchanger or the Eurocharged one....Decent price difference, but any other real differences?

loungn14

different cores. Ours are racing cores, move fluid better.

C_DirtyTwo

ah, I see. Nuff said

C_DirtyTwo

Ok this is my third Johnson pump WTF! This one only lasted 8k miles.....does having the IC iso kit have anything to do with this ridiculous wear???

WaveyKat

why do you guys keep buy them if they go bad so fast? why dont you try the meziere pump?mines running pretty good :-)

tw2

I have pics of the PLM heat exchanger I installed. I doubt you can go wrong with either one when you compare it to the stock one.

fccthawk

I have had my OEM pump for 172,000mi (knock on wood)