No-start and dead battery
We test the battery, the alternator output and the parasitic draw together. A new battery does not fix a charging fault, and most repeat no-starts are a charging fault.
Starr County, Texas
We are on West Main, so you are minutes away. Call before you buy a part, and definitely before you pay for a tow across town.

You have three options. Here is how we would pick between them.
Bring it in. We are on West Main and you are in town, so a walk in is realistic. Call ahead and we will tell you whether we can get to it today.
Call us before arranging anything. You are minutes from the shop, so a service call is usually quick and cheap for us to run.
Have them bring it here. We have room to leave a vehicle and we will test the whole starting and charging system rather than guessing.
Being in the county seat means the shop sees a wider spread of vehicles than a town this size normally would, from city and school district units to ordinary daily drivers.
We test the battery, the alternator output and the parasitic draw together. A new battery does not fix a charging fault, and most repeat no-starts are a charging fault.
Usually a leak, a clutch that is not engaging, or a cooling fan circuit. We find which before anyone buys refrigerant.
Shorts, parasitic drains, bad grounds and fuses that keep blowing. This is the work other shops send us.
City, county, school district and emergency units, including 24-volt systems and the upfit wiring added after the factory.
Diagnosis on most electrical and starting problems takes about an hour. Plenty of repairs go out the same day. Some do not, and we would rather tell you that on the phone than after your vehicle is already sitting here. Call and ask.
Service calls
A dead battery or a starter that will not turn means the vehicle is not going anywhere. We run mobile service calls out to where you are, so you are not paying for a tow just to find out what is wrong.
If you are in Rio Grande City and the vehicle will not move, we are minutes away. Call before you pay for a tow across town.
You will know the call-out charge before we leave the shop. It depends on how far out you are and what the vehicle needs, so we quote it on the phone rather than pretending there is one price for everybody.
Asking costs nothing and commits you to nothing. Tell us what the vehicle is doing, and if a tow or driving it in would work out cheaper for your situation, we will say so.
Call (956) 487-2143The same work we do for every town on US-83.
Yes. Rio Auto Electric at 400 W Main St has specialized in automotive electrical since 1997, alongside full service repair. Electrical diagnostics is the work other shops in the area refer to us.
Often, yes. Diagnosis on most electrical and no-start problems takes about an hour, and many repairs go out the same day. Call (956) 487-2143 first and we will tell you honestly whether today is realistic before you drop it off.
No, you can walk in, but calling first is better. We are open Monday through Thursday, 9 AM to 5 PM, and closed Friday through Sunday, so a two minute phone call tells you whether to come now or wait until next week.
Call us before you do. You are minutes from the shop, so a service call to come look at it is often quicker and cheaper than a tow. If a tow really is the right answer for your situation, we will tell you that.

That is usually when people call us. Tell us what the vehicle is doing and we will tell you straight whether we can help.