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Below is a collection of Jim Grant's Tech Tips sorted by Vehicle Make. These Tech Tips were answers to questions submitted to Jim by ALLDATAdiy.com users over the course of many years.
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  Jim Grant's Tech Tips

'93 Chevy Silverado, Radiator Hairline Leak

Q: I have a hairline leak on the top of my radiator of my '93 Chevy Silverado. The fan cover blocks it out on the edge. I took off the cover and noticed how small it really is. My question is if J.B. Weld will work? I think the radiator is plastic at least the casing area. Should I replace the radiator and upgrade to a bigger one? What do you recommend I should do.

- Ben L.

A: I would suggest replacing the radiator for a couple of reasons. Repairing old plastic is a patch that might hold. Do you want to find out that the patch didn’t hold just when you need your truck the most? Also, inside the radiator the cooling tubes have been collecting deposits that interfere with the effectiveness of the radiator. Old radiators just don’t cool as well as they should. If your truck is in good condition and you’re planning on keeping it, do yourself and the truck a favor and install a new radiator. If the coolant hoses haven’t been changed it would be a good time to update them as well.

 
     
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