How effective are the leak diagnostics kits

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ADU
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I have already spent $50 on leak diagnostics (coolant & oil) only to learn they rely on dyes to detect the problem and looks-simple-manual procedures.

I have also seen fluid leak diagnostic kits available in auto-parts store. These seem to comprise of dyes (ac, coolant, oil, transaxle), an injector, UV glasses, hose connectors.
Do we have to drain out the dye after using it (Directions in the kit did not mention anything abt this)?

How reliable are these kits and is it a DIY task ?

Thanks,
adu
Jan 4, 2007 at 7:28 PM
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SERVICE WRITER
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Looking for leaks isn't as black and white as throwing in dye and it will slap you in the face and just show up.

I try to use dye as a last resort. It works, and you don't need to remove it if you don't want. It's messy sometimes and doesn't always make it simple.

I thoughly clean the area in question with brake clean or whatever solvent won't damage anything, then dry it with compressed air. Run the motor and watch. If nothing obvious take it for a quick ride and recheck. If still nothing get it at highways speeds then recheck. If still nothing give it a day or two.
Jan 4, 2007 at 8:17 PM
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RASMATAZ
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Do you have a physical leak from the coolant or oil, or it just disappearing and don't know where its going.

If there's a physical leak-I would take Mr. Service Writer's advised and go from there.
Jan 4, 2007 at 9:13 PM
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MR. ?
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Sorry, got carried away. Internal leaks are another story. I seen a different post by Abu about a rear main seal, and made the assumption. :wink:
Jan 5, 2007 at 4:51 AM