1988 Dodge Ram Cold Weather problems

1988 DODGE RAM
120,000 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
TGARNER
  • MEMBER
  • 1 POST
My Doge Ram runs perfect in weather over 60 deg F.
When the temp gets cold the truck will cold start and run well until it warms up. Then it chokes down and runs rich at idle, I can see black smoke out of the tailpipe. It is throttle body Fuel injection. It is like it is stuck in a cold start mode and then will not come out once the truck warms up. I at first thought coolant sensor problems but why will the truck run right when the weather is warm?
Jan 3, 2008 at 12:35 PM
Avatar
BLACKOP555
  • ✓Experienced Mechanic
  • 10,386 POSTS
the problem with TBI engines is they arnt the best at the cold starting, the coolant temp sensor is probably the blame. when it warms up the temp sensor is telling the cpu the engine is warm causing it to lean out the mixture, but if its cold and the sensor is saying its warm, then it leans out the mixture and it wont run warm when first running cold.
Jan 3, 2008 at 1:04 PM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle