my 2002 f150 does not want to start when it is below 40 dgree

Asked by Feb 02, 2016 at 10:42 AM about the 2002 Ford F-150

Question type: Maintenance & Repair

It will spin but not crank without repeated attempts when it is cold outside. It does fine when the temperature is warmer. The alternator, the battery, and the fuel filter has been changed.

8 Answers

56,875

You have either a weak spark, or low fuel pressure.

As in fuel pump? And it only happens when the temperature is cold

56,875

Check the spark, it should look white, blue, if it is weak, it will be a yellow, orange color. And when is the last time it has ben gone over for a tune-up? Is it due?

It has been awhile. I also have 2 O2 sensors that need replaced according to the diagnostic check. Would that do it?

56,875

Yes, the PCM cannot adjust the air fuel mixture correctly, between that and the temperature sending unit is where the PCM gets its info in how to adjust the air fuel mixture. Do you remember the codes? I can look them up.

1 out of 1 people think this is helpful.

no. My son ran the codes at the local dealership and it showed 2 of the sensors were bad but I don't have that information with me here.

56,875

Probably is then if thats what they told him.

I knew that was the problem as to why the check engine light was on but didn't know if that would cause the cold temperature no start condition.

Your Answer

Add photo

Related Questions

F-150

Looking for a Used F-150 in your area?

CarGurus has 209,613 nationwide F-150 listings starting at $895.

ZIP:

Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
OJ
Reputation 7,170
#2 dandyoun
dandyoun
Reputation 4,250
#3 tennisshoes
tennisshoes
Reputation 2,590
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,005 Great Deals out of 157,316 listings starting at $1,995
Used GMC Sierra 1500
887 Great Deals out of 64,187 listings starting at $2,275
Used Dodge Ram 1500
441 Great Deals out of 11,502 listings starting at $1,950
Used Ford F-250 Super Duty
378 Great Deals out of 46,991 listings starting at $400
Used Toyota Tundra
555 Great Deals out of 31,672 listings starting at $2,800
Used Toyota Tacoma
550 Great Deals out of 37,021 listings starting at $2,950
Used Ford Mustang
308 Great Deals out of 45,194 listings starting at $2,000
Used Ford Explorer
764 Great Deals out of 73,775 listings starting at $750
Used Chevrolet Tahoe
619 Great Deals out of 27,508 listings starting at $600
Used Ford Ranger
178 Great Deals out of 6,228 listings starting at $1,300
Used Jeep Wrangler
302 Great Deals out of 19,026 listings starting at $2,200

Used Cars For Sale

2017 Ford F-150 For Sale
7 Great Deals out of 114,823 listings starting at $17,214
2016 Ford F-150 For Sale
145 Great Deals out of 31,040 listings starting at $8,950
2015 Ford F-150 For Sale
178 Great Deals out of 7,254 listings starting at $11,600
2014 Ford F-150 For Sale
423 Great Deals out of 12,084 listings starting at $9,995