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Do you know what "excessive ripple" means when associated with an alternator?

At first I brainstorm my battery was bad, so I replaced it, then my car died while I was driving so my thoughts were that there was something wrong with the alternator. I took it to advance auto parts to get it tested and the skim out said excessive ripple, but nobody there knew what that meant. Has anyone ever seen this before or know what it means? My car is a Ford Focus.


my conjecture would be loose belt


I've seen it hundreds of times, it means you prerequisite a new alternator. Excessive ripple refers to a problem with a diode or the stator within the alternator.


It means that the voltage productivity of the unit is varying too much, that it's not a steady 12v or a steady 14v, but that it is changing excessively, aka "excessive ripple"

It means you demand a new altenator


Unshakable do! One or more diodes in the alternator have failed. You can measure this yourself if you have a digital voltmeter - place the voltmeter across the battery with the mechanism running. The AC volts should be well under 0.1 volt, and I bet yours reads more than 0.5 volts AC. An oscilloscope gives and even advance picture, but the meter tells the story. When I worked in aviation I saw dozens of those, and I have seen maybe half a dozen in cars. Recharging batteries by direction the engine is a common cause.

Bad diodes reduce alternator output 33%, 67%, or 100%, depending on how many go bad, and the undulation can drive electronics crazy. If you have a bad diode and remove the battery lead for an old-fashioned alternator trial the ripple can reach most of a hundred volts and ruin thousands of dollars worth of computers, controllers, dive system and security system components.

The alternator has to be replaced. I recommend an actual Ford alternator from the dealership because aftermarket alternators (and starters) have earned such a nasty reputation.

(Overheating) Does that mechanic know what he is doing?

I have a Ford Focus ZX3 2003 and the apparatus was overheating. I went to a mechanic and he told me that the Coolant Bottle, T-State & Gasket need to be replaced because the Coolant Liquor was leaking. I was pretty sure it was not because I filled it with antifreeze few days ealier when I noticed that something is going on and it was full when he was checking it, so I was bonny sure it was ok. He was pretty sure about it so I just replaced all that and he charged me $ 296.

After about a week or less the car started overheating again, but it seemed like it was worst than before. There was also a aroma of burning rubber coming from under the hood. It was in the middle of the summer time and I live in Las Vegas, NV and it gets definitely hot outside if that might be a factor. I went back and the guy told me that i need to replace AC Compressor and Reciver Drier - he told me that he can do it for $1300 but then went down to $900. I asked around and I found few places in $500 - $600 collection. But thats not the most important thing.
I am wondering if replacing AC Kit has something to do with actual overheating problem. Is this something that is connected or not. I am asking because I had another unmanageable with my car now and I was at a different shop and they are telling me completly something else. I dont want to get into too many details about it because it is even more complicated, but I am trying to participate out what is what. He charged me for diagnostics, replaced parts that did not need to be replaced and told me to fix AC in order to prevent the car from overheating. Does that contribute to any sense? Thank you.

(Overheating) Does that mechanic know what he is doing?

I have a Ford Focus ZX3 2003 and the machine was overheating. I went to a mechanic and he told me that the Coolant Bottle, T-State & Gasket need to be replaced because the Coolant Cut off was leaking. I was pretty sure it was not because I filled it with antifreeze few days ealier when I noticed that something is going on and it was full when he was checking it, so I was mellifluous sure it was ok. He was pretty sure about it so I just replaced all that and he charged me $ 296.

After about a week or less the car started overheating again, but it seemed like it was worst than before. There was also a fetor of burning rubber coming from under the hood. It was in the middle of the summer time and I live in Las Vegas, NV and it gets in effect hot outside if that might be a factor. I went back and the guy told me that i need to replace AC Compressor and Reciver Drier - he told me that he can do it for $1300 but then went down to $900. I asked around and I found few places in $500 - $600 wander. But thats not the most important thing.
I am wondering if replacing AC Kit has something to do with actual overheating problem. Is this something that is connected or not. I am asking because I had another quandary with my car now and I was at a different shop and they are telling me completly something else. I dont want to get into too many details about it because it is even more complicated, but I am trying to get a fix on out what is what. He charged me for diagnostics, replaced parts that did not need to be replaced and told me to fix AC in order to prevent the car from overheating. Does that make peace any sense? Thank you.

Does that mechanic know what he is doing? (Overheating)?

I have a Ford Focus ZX3 2003 and the mechanism was overheating. I went to a mechanic and he told me that the Coolant Bottle, T-State & Gasket need to be replaced because the Coolant Courage was leaking. I was pretty sure it was not because I filled it with antifreeze few days ealier when I noticed that something is going on and it was full when he was checking it, so I was graceful sure it was ok. He was pretty sure about it so I just replaced all that and he charged me $ 296.

After about a week or less the car started overheating again, but it seemed like it was worst than before. There was also a foetor of burning rubber coming from under the hood. It was in the middle of the summer time and I live in Las Vegas, NV and it gets Non-Standard real hot outside if that might be a factor. I went back and the guy told me that i need to replace AC Compressor and Reciver Drier - he told me that he can do it for $1300 but then went down to $900. I asked around and I found few places in $500 - $600 organize. But thats not the most important thing.
I am wondering if replacing AC Kit has something to do with actual overheating problem. Is this something that is connected or not. I am asking because I had another problem with my car now and I was at a various shop and they are telling me completly something else. I dont want to get into too many details about it because it is even more complicated, but I am trying to figure out what is what. He charged me for diagnostics, replaced parts that did not necessity to be replaced and told me to fix AC in order to prevent the car from overheating. Does that make any sense? Thank you.


ok, i'll buy some of this but not all...
the blazing rubber smell had me for about 10 seconds...

i think what has happened is the ac clutch has failed, thus the belt does not keep going the clutch thus the belt is being dragged and burning while the engine is running thus the burning rubber smell. if that system uses a sinuous belt (one belt for everything), then the ac clutch being locked up and causing the belt to burn means its not turning the pee pump as freely as it should, thus an overheating problem.

do u care about the ac? if not, i'd suggest calling a ford dealer and asking them if this car was availiable without ac, if so i'd have a non ac tract put on which would not allow the ac to work but would allow the water pump to be run by belt again.

if u want ac, then yes, an ac compressor with clutch kit would be in request, but i'd call around and see if u can get it done cheaper...even in "lost wages", the economy is bad and shops are hungry and willing to conduct oneself treat on labor.

2005 ford focus making clicking noise.?

Changed oil and oil pass through accidentally spilled oil on some car part don't know what it is but now car making a clicking sound. Am not sure if the spilled oil has anything to do with the clicking. Car clicks when in garden and drive. The clicking gets louder when the ac is turned on but when i turn the ac off i can still hear it. Its sounds like click click breathing-space click click pause. What can it be?

2001 01 Ford Focus parts car S90014

Parting out 2001 01 Ford Focus

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(1 diggs) ford oem parts-TYC 2590012 Ford Focus Driver Side Manual Remote Replacement Mirror sakon555 Article by at 2010-12-31 08:56:57
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(63 diggs) Video: Ford ad features 21 instruments made from Focus parts websurfer101 Movie composer Craig Richey and the world?s top Director Noam Murro to create this work of art. Shot in LA, the new Ford Focus ad features 21 instruments made from parts of the new Focus.
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