1. Home
  2. Ford Explorer Forum
  3. 97 Explorer Sport cold start problems

97 Explorer Sport cold start problems

I have a 97 Explorer Sport with 4.0 SOHC. What happens is when it's cold out usually below 30 degrees it'll start fine then they rpms drop way down and she'll sputter then rev then sputter. It'll do that for 30 or 40 seconds then idle normal. Had it at the garage and it shows no error codes. The check engine lite ie not lite. They suggested replacing the coolant temp. sensor which was done. No difference. Also replaced the intake air temp. sensor. It's still didn't help. Does anyone have any idea what may be doing this? Any help would be appreciated.

Thanks

Reply to
John Mull
Loading thread data ...

If no codes, its usually dirt related.

Dirty injectors, IAC sticks cold, MAF dirty etc.

Reply to
JohanB

I had the injecters cleaned. Forgot to put that in my first post. I'll try your other suggestions. Thanks

Reply to
John Mull

o rings intake leak, running to lean,, if u can smoke it cold, u can see it come out

Reply to
bh--

I have to wonder about your garage of choice.... so far they have replaced parts, apparently, on a whim. These motors are infamous (as in everyone except your mechanic) knows there are concerns with the intake manifold gaskets when cold. FWIW, if the motor is warm when they are looking for this problem, they will not find it.

Reply to
Jim Warman

I usually only used this garage for inspections mainly. I've never had any problems with this car since new. It just turned 75,000 miles. Actually this car runs great except for this problem which just started, and then it doesn't do it all the time. Today when I started it this morning it didn't do it. It was 31 degrees out. It ran normally. When it does do it, it only lasts for 30 or 40 seconds, if that. I guess I'll have to take it to the Ford Dealer. Thanks for the information about the intake manifold.

Reply to
John Mull

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.