Cold start problem

[Bonedale]

Hey everyone. I have had this cold start problem for 3 years now. Every winter, my 4runner decides to not start on cold morning. Last 2 winters in was below 10 or so. This winter it is not starting below 30 or so. It cranks very well, but does not catch. The mechanic run some tests and determined it was not getting spark. The mechanic put in a crank position sensor. Still doesn't start.

Any ideas?

 

[Lineman]

No spark, distributor, rotor, bad ignition coil. All those checked?

 

[Samxini]

No spark, distributor, rotor, bad ignition coil. All those checked?

Agreed, if it's not getting spark the CPS is the last thing I would have checked. Get a new mechanic.

 

[Bonedale]

Yeah, I'm planning on bringing it to a new guy this week. Is this a common problem?

 

[Lineman]

Details? How old is Runner? Have these ever been changed?

 

[TheDurk]

Year? Engine?

 

[Bonedale]

99 4runner, limited- 3.4

None of those things have been changed. Also, years back I blew the main fuse. I replaced it, but I feel like that is related.

 

[Lineman]

I would start with above mentioned. Make sure spark is being sent. I'd also check your spark plugs. Have you ever changed those? Make sure they are good. Go from there.

 

[airmax233]

what about your battery? Test you battery

 

[diverscale]

what about your battery? Test you battery

If the engine cranks well, the battery is obviously not the culprit.

Mine always have to crank a few turns more than an usual vehicle before starting, I wonder how it will do this winter. Keep us updated OP