Spartans Posted May 17, 2023 Share Posted May 17, 2023 I have a 2009 ford fiesta titanium 1.4 petrol. I need help for the following problems. My car gets no more than 25mpg car doesnt get ragged including mway journeys. Also the car has slow acceleration than usual takes time to reach 70. Finally, the car starts heating unless the ac is on. Without ac on the temperature reaches 105 and fans come on but with ac on it stays between 65-85. 1 Quote Link to comment Share on other sites More sharing options...
Tiexen Posted May 17, 2023 Share Posted May 17, 2023 When did it have its last service Quote Link to comment Share on other sites More sharing options...
unofix Posted May 17, 2023 Share Posted May 17, 2023 8 minutes ago, Tiexen said: When did it have its last service 2009 🤣 1 3 Quote Link to comment Share on other sites More sharing options...
59bhp Posted May 20, 2023 Share Posted May 20, 2023 Disconnect battery, clean the t-map sensor(liquid moly MAF cleaner) and clean throttle body. Lots of YT vids on how too. Reconnect battery Run idle for 10 minutes then go for a long drive. Probably best to fix radiator issues first. Either a sensor or corroded radiator wire connector. 1 Quote Link to comment Share on other sites More sharing options...
frund Posted May 25, 2023 Share Posted May 25, 2023 I don't know this car but. Start with air filter then look for vacum leaks causing the fuel trim to compensate. Clean MAF sensor look for corroded sensor wires. Partly sticking injector = fuel rail pressuire test. Should be quite fixable. 1 Quote Link to comment Share on other sites More sharing options...
Bobr Posted May 25, 2023 Share Posted May 25, 2023 Check your tyre pressures. Quote Link to comment Share on other sites More sharing options...
Eric Bloodaxe Posted May 25, 2023 Share Posted May 25, 2023 On 5/20/2023 at 2:21 AM, 59bhp said: Probably best to fix radiator issues first. Turning the heater blower on full used to be a classic bodge when cars overheated. Does sound like an issue there, possibly thermostat to add to points mentioned. @unofixwas (probably!😃) joking about the last service but a bit more about the service history etc could help diagnosis. With a 14 year old car there could be any number of issues Quote Link to comment Share on other sites More sharing options...
unofix Posted May 25, 2023 Share Posted May 25, 2023 OPW ? Quote Link to comment Share on other sites More sharing options...
Smartd00d Posted May 25, 2023 Share Posted May 25, 2023 A bottle of Cataclean wouldn’t hurt either. Quote Link to comment Share on other sites More sharing options...
Eric Bloodaxe Posted May 25, 2023 Share Posted May 25, 2023 2 hours ago, Smartd00d said: A bottle of Cataclean wouldn’t hurt either. I'd prefer a decent claret myself - oh, you mean for the car? Quote Link to comment Share on other sites More sharing options...
Spartans Posted May 28, 2023 Author Share Posted May 28, 2023 On 5/20/2023 at 2:21 AM, 59bhp said: Disconnect battery, clean the t-map sensor(liquid moly MAF cleaner) and clean throttle body. Lots of YT vids on how too. Reconnect battery Run idle for 10 minutes then go for a long drive. Probably best to fix radiator issues first. Either a sensor or corroded radiator wire connector. Thanks ill try that Quote Link to comment Share on other sites More sharing options...
Spartans Posted May 28, 2023 Author Share Posted May 28, 2023 On 5/17/2023 at 10:05 PM, Tiexen said: When did it have its last service Regular service i think its a electrical problem Quote Link to comment Share on other sites More sharing options...
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