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Mazda Protege cold starting Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Car Troubleshooting Mojo Anonymous Poster moriarty.rj@gmail.com Dec 17, 2007, 2:35 PM Post #1 of 4 (3087 views) Mazda Protege cold starting Sign In A few winters ago, when I was on the other side of the country, my mother's 98 Mazda Protege started having trouble starting in the winter. My father replaced the battery and that didn't do the trick. In order to start it my parents would sit on the ignition for about 30 seconds until the engine got warm enough to start up. Naturally when I came back after a couple of years, the starter was completely burned out and I had to replace it for them. Now it is winter again and they are back in the routine of toasting the starter in order to get the car running in the morning. Any ideas on what the problem could be? I checked out the Intake Air Temp sensor and it seemed fine. I'd rather figure out what the real problem is than buy a new starter for it every few winters. DanD Veteran / Moderator Dec 17, 2007, 3:49 PM Post #2 of 4 (3083 views) Re: Mazda Protege cold starting Sign In I’m not all that familiar with Mazda; I just looked through the TSB”s that I have on this vehicle and there was nothing there to address this issue. I would maybe have a check of the engine coolant temperature sensor. Testing its resistance value at different temperatures. The only chart that I have gives a resistance value of 2200 –2800 Ohms at 68 Degree F or 290 – 400 Ohms at 176 Degree F. So The colder the temp the higher the resistance value of the sensor. If the resistance value doesn’t go any higher then, for example 1000 ohms the computer thinks the engine is still warm and wont add the extra fuel the engine needs to start, when it’s say 40 Degree weather? If all else fails stick a block heater in the engine and tell your parents to plug it in at night. LOL Sorry I don’t mean to make fun but at times when the gremlins won’t give up their secrets. You do what you have to. Dan. Canadian "EH" Mojo Anonymous Poster Dec 31, 2007, 10:28 AM Post #3 of 4 (3056 views) Re: Mazda Protege cold starting Sign In I checked the coolant temperature sensor. It read 391 hot and 2500 cold. The 2500 was at a temp. I'm sure was lower than 68 degrees though, does that mean it was probably to low? DanD Veteran / Moderator Jan 1, 2008, 9:31 AM Post #4 of 4 (3054 views) Re: Mazda Protege cold starting Sign In Like I said I’m not all that familiar with Mazda and don’t know how high the resistance value will go with the colder temperatures? If you were into this you could remove the sensor and place it in the fridge or freeze along with a thermometer. Testing the sensor at known different temperatures? If that seems extreme and for the cost of this sensor just replace it. Dan. Canadian "EH"   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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