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Jim Grant Tech Tips Jim Grant Tech Tips
A collection of helpful articles based on reader submissions
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  Jim Grant's Tech TipsJim Grant's Tech Tips
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 users over the course of many years.
If you have any questions, please feel free to email us.



Lincoln - Mercury
  Jim Grant's Tech Tips

'96 Camry, A/C Bad Odor

Q: I have a ‘96 Toyota Camry and when I turn on the vent fan or A/C, I get a smell like cat pee. I checked the drain hose in the passenger side floor, but it was dry. Any suggestions would be great!

- Tom S.

A: Odors from the air conditioning system on a vehicle can be offensive to totally disgusting. The first item you want to check is the drain for the air conditioning. With the engine running and the A/C set on max with the blower speed on high you should see a steady drip to almost a flow of water from the A/C drain. If the drain stays dry then there is blockage or a restriction in the drain that must be cleared. The other problem is microbial growth in the evaporator of the A/C system that is the result of dampness caused by the moisture being removed from the incoming air. Once the nasty growth starts happening about the only way it goes away is with the ice-cold air of winter or treatment of the A/C system with a disinfectant. The ALLDATA Information System abounds with service bulletins from every manufacturer for dealing with odor problems. Technical Service Bulletin (TSB) #AC00297 shows Toyota’s recommended procedure for disinfecting the A/C system in your vehicle. Toyota has a removable panel on the driver’s side of the heater box that allows for access to the A/C unit’s evaporator where those malicious odors originate from. Once the panel and a few other parts are removed a disinfectant can be sprayed in where it is needed most to rid your Toyota of those less than desirable aromas.

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