# Dodge ram cold start/ run problem

**URL:** <https://community.cartalk.com/t/dodge-ram-cold-start-run-problem/39841>\
**Category:** Maintenance/Repairs\
**Tags:** ram, dodge, 1500\
**Created:** [November 22, 2009, 3:02am UTC](https://community.cartalk.com/t/dodge-ram-cold-start-run-problem/39841 "2009-11-22T03:02:07Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![berliner](https://avatars.discourse-cdn.com/v4/letter/b/ac91a4/32.png) [@berliner](https://community.cartalk.com/u/berliner)\
**Post date:** [November 22, 2009, 3:02am UTC](https://community.cartalk.com/t/dodge-ram-cold-start-run-problem/39841/1 "2009-11-22T03:02:07Z")

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My 98 Ram 1500,V6, starts up fine,but after about a minute it bucks,backfires into the intake,does not take gas. Except full throttle. After it warms up, it runs fine.It does it in cold and warm weather. I put a new coolant sensor in and it ran fine for a week or two,now the same problem again

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**Author:** ![NYBo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nybo/32/17281_2.png) [@NYBo](https://community.cartalk.com/u/NYBo)\
**Post date:** [November 22, 2009, 3:12am UTC](https://community.cartalk.com/t/dodge-ram-cold-start-run-problem/39841/2 "2009-11-22T03:12:46Z")

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Check the connector at the CTS.

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**Author:** ![berliner](https://avatars.discourse-cdn.com/v4/letter/b/ac91a4/32.png) [@berliner](https://community.cartalk.com/u/berliner)\
**Post date:** [November 22, 2009, 3:43pm UTC](https://community.cartalk.com/t/dodge-ram-cold-start-run-problem/39841/3 "2009-11-22T15:43:36Z")

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connector seems fine. I should mention that there is no trouble code stored.

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**Author:** ![NYBo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nybo/32/17281_2.png) [@NYBo](https://community.cartalk.com/u/NYBo)\
**Post date:** [November 23, 2009, 1:38am UTC](https://community.cartalk.com/t/dodge-ram-cold-start-run-problem/39841/4 "2009-11-23T01:38:04Z")

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Check for vacuum leaks.

Here is something else to look at: With the engine off, remove the air snorkel on the throttle body, open the throttle completely, and look down into the intake manifold with a flashlight. The bottom of the intake manifold should be fairly clean. If the bottom is coated in oily sludge, the intake manifold belly pan gasket is leaking.