The old 95 Intrepid is acting up and a bit stumped by it - 3.3l with about 470k km on it - or about 300k miles. My son drives it more than me now. It is hard starting anytime it has sat long enough to get cold. With the really cold weather (we are in Ontario just outside Toronto - had some really cold nights in January) its almost impossible to start without either plugging in the block heater or using starter fluid. After changing several things on the ignition side with spares I had (wires, cam and crank sensor, coil pack, wires and checked plugs) I believe it is a fuel side problem. If you open the air intake and spray starter fluid (quick start) into the TB enough to pool a little it will fire right away - but then sputter and die if it is cold. Fuel pressure is good - around 52 psi and it holds. Tried changing fuel pump relay and run start relay. Topped up the coolant this morning (read that low coolant can cause false coolant sensor readings) - no help. It did throw a cam sensor code a month ago or so around the time this started (hence the sensor replacement) but it is not throwing any codes now. When / if it starts it usually sputters a bit runs rough for a minute then runs fine - takes multiple tries always to get it going cold. Replaced the battery as it froze one night - though other than that night cranking has been fine. Short stops it fires right up. I am suspicious of the coolant temp sensor - though Alex says the gauge reads normal. Then also suspicious of the MAP sensor. Don't have a spare of either of those (that I can find anyway ). Debating to order a MAP sensor. Any other suggestions? ways to test the MAP?. I did reseat the connector on the MAP - seemed help a little - at least it fired at -12 C but still not right. At -12 it should not need the block heater. MAP sensor is original I believe - coolant temp sensor replaced some 5 years ago after it overheated - might have been a used one not sure. Any suggestions appreciated. Other thing on the MAP sensor now that I think about it, the car has for several years had the occasional back fire - when you released the key too early it seemed on starting - sure that did not help the MAP.