Anybody having trouble with the airtronics radio system in the Teamassociated tc4 rtr

[M3EVOlution]

Hi, I have a tc4 rtr. and am having trouble with the car's radio system. It is the stock airtronics. Anyways at about 50-75 feet it keeps cutting up and this is even when using new batteries. So then I was wondering if it was a problem with the crystals. I then bought some hpi blue crystals from towerhobbies to replace the stock yellow from the remote and receiver but still it was sputtering at about 50-75 feet.

[Neon_Dave]

Your radio system may be defective. Try taking it in to a hobby shop to see what they think.

[M3EVOlution]

i bought it from ultimatehobbies.com

[nomad1]

My TC4 did the same thing. My problem was the motor. The RTR motor endbell came loose real easy and caused the eletronics to glitch. I found when I had talked to other TC4 RTR drivers to have the same problem. I have a comm cutter, so I cut the motor comm and serrated the brushes and sealed the endbell to keep it from coming apart agian. It has worked good for the past few months. I haven't ran it lately. As a side not if your racing with the stock motor(RTR) on a small carpet track gear 2 gears down on the pinion. The car will be almost as fast on the top end and accelerate much, much faster. I dropped my lap times by .03. And the pinion is is all I changed.