SLOW!!! to warm up
daman
02-22-2005, 06:57 PM
My '95 trans sport warms up too slow in the morning i can start it let it idle 15-20 minutes and the temp gauge is barly off a 100 deg. mabie 120 and it's not the thermastate i just put a new oe one in today with the rubber gasket, and a new 15lb rad. cap. I get plenty of air out the ducks, the motor just won't warm up at an idle, go down the road and she heats right up. My Montana will cook you out in 5-8 minutes of idleing :banghead:
LMP
02-23-2005, 01:25 PM
OK..I had same problem with mine at the very time I bought it. Tell me if I'm wrong, but you operate in very cold climate, and it burns a lot of fuel in city driving.
My appreciation - based on smell, fuel burn and the fact that on the highway, all returns ro normal - was that whe cold, the fuel is very poorly metered: in fact is gets a lot too much and the excess unburned fuel carries the heat out through process known as "evaporative cooling". THis is actually used to help cooling small aircraft air cooled engine during climb because at that time, power is max and speed is not much, and we use FULL RICH during climb, and when equipped with a manifold temperature gauge, we can see the temp go down at full rich, and go up when leaning..
I solved the problem by adding a switchable 2200 ohm resistor in parallel with the coolant temp sensor. THis lets the computer THINK the engine is warmer, then is leans the fuel mixture, and engine warms up faster and fuel burn is lower.
Once the engine is really warm, the sensor value totally overrides the 2200 ohm resistor so no problem. HOwever when starting, the resistor muct be cut out because it leans the mixture enough so that engine would barely start. After 20 seconds, switch the resistor in and all is well.
Now I will not pretend that you have exactly same situation, but for me, it did good, even if ......(see below).
My appreciation - based on smell, fuel burn and the fact that on the highway, all returns ro normal - was that whe cold, the fuel is very poorly metered: in fact is gets a lot too much and the excess unburned fuel carries the heat out through process known as "evaporative cooling". THis is actually used to help cooling small aircraft air cooled engine during climb because at that time, power is max and speed is not much, and we use FULL RICH during climb, and when equipped with a manifold temperature gauge, we can see the temp go down at full rich, and go up when leaning..
I solved the problem by adding a switchable 2200 ohm resistor in parallel with the coolant temp sensor. THis lets the computer THINK the engine is warmer, then is leans the fuel mixture, and engine warms up faster and fuel burn is lower.
Once the engine is really warm, the sensor value totally overrides the 2200 ohm resistor so no problem. HOwever when starting, the resistor muct be cut out because it leans the mixture enough so that engine would barely start. After 20 seconds, switch the resistor in and all is well.
Now I will not pretend that you have exactly same situation, but for me, it did good, even if ......(see below).
daman
02-24-2005, 06:31 PM
Hi thanks for the responce, i'm in Michigain cold but not too bad, i'ts not bad on gas in city driving or open road. does any body else have this problem. may just have to live with it :confused:
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