Posted: 1/2/2013 8:50:21 AM EDT
|
I have a 2000 Mercury Sable with 110,000 miles. 3.0 liter engine. Starts fine in warm weather, but not when the temperature is below 55 degrees. It's not the battery, it cranks fine. One suggestion from someone else was the MAF sensor, I looked at it and it looks perfectly clean. Any simple things to look for? |
|
depends on what you mean by hard starts.
cranks and cranks and never catches, stop and crank again it fires off. cranks longer than normal in warm weather, (if so how much more) then starts doesn't start at all starts then dies starts idles rough then dies starts idles rough and then gets better when it warms up |
|
Quoted: depends on what you mean by hard starts. cranks and cranks and never catches, stop and crank again it fires off. cranks longer than normal in warm weather, (if so how much more) then starts doesn't start at all starts then dies starts idles rough then dies starts idles rough and then gets better when it warms up It won't start if the temp is below 55 or so. It cranks and cranks and doesn't start at all. Well, yesterday, it was about 58 degrees and it cranked and started right up and ran fine. Idles smooth. Drives fine. Went to HEB and came back. No problem. Today it's below 50 and just cranks and cranks and doesn't start. Other than the starter turning, it doesn't even try to fire off. |
|
wow, that is not much of a temp change.
first instinct would be something electronic shrinking in the cold causing you a problem. but I agree with the poster above, see if you can narrow down spark or fuel. I would pull a plug and check for spark rather than spend money on starting fluid. next I would try turning the key on to run but not start for about 10 seconds and then trying to crank to see if that worked. either way let us know. |
|
http://www.taurusclub.com/forum/82-maintenance-repair/152786-driveing-mass-air-flow-sensor-unplugged.html
driving off tables now instead of actual input. guess that confirms it is bad. http://www.motor.com/article.asp?article_ID=1047 trouble shooting incase you want to verify. |
|
Quoted: http://www.taurusclub.com/forum/82-maintenance-repair/152786-driveing-mass-air-flow-sensor-unplugged.html driving off tables now instead of actual input. guess that confirms it is bad. http://www.motor.com/article.asp?article_ID=1047 trouble shooting incase you want to verify. Good references, thanks. Probably won't drive it unplugged though. |