# Overheating/Coolant/Start-Up

**URL:** <https://community.cartalk.com/t/overheating-coolant-start-up/71788>\
**Category:** Maintenance/Repairs\
**Tags:** civic, honda\
**Created:** [April 6, 2012, 4:52am UTC](https://community.cartalk.com/t/overheating-coolant-start-up/71788 "2012-04-06T04:52:16Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![haynes83](https://avatars.discourse-cdn.com/v4/letter/h/76d3ee/32.png) [@haynes83](https://community.cartalk.com/u/haynes83)\
**Post date:** [April 6, 2012, 4:52am UTC](https://community.cartalk.com/t/overheating-coolant-start-up/71788/1 "2012-04-06T04:52:16Z")

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Hello, I have a 1998 Civic LX with a D16Y7 engine. It has 220,000 miles and the only major maintenance that has been performed is an exhaust manifold replacement (due to a crack) which apparently is a common issue with this model. The symptoms I have been having for the past week are as follows:  
The temperature gauge starts to climb towards H while the car is sitting in traffic or idling for a lengthy period of time. When the car starts moving again, the temperature gauge retreats to normal operating temperature. The coolant level seems to be slowly leaking as I have added around ½ gallon in the past couple weeks. There is no external leak showing and there is no smoking in the exhaust. Recently, my car has had sputtering issues on cold start-up (usually after sitting overnight). The sputtering only lasts for a couple seconds and then the engine runs perfectly. One of these start-ups presented a check engine code of PO301 and P1399 (random and cylinder 1 misfires).  
Any idea as to the cause of these symptoms? Thanks!

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**Author:** ![dodge330](https://avatars.discourse-cdn.com/v4/letter/d/ec9cab/32.png) [@dodge330](https://community.cartalk.com/u/dodge330)\
**Post date:** [April 6, 2012, 6:34am UTC](https://community.cartalk.com/t/overheating-coolant-start-up/71788/2 "2012-04-06T06:34:03Z")

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check for head gasket issues

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**Author:** ![oldtimer-11](https://avatars.discourse-cdn.com/v4/letter/o/e79b87/32.png) [@oldtimer-11](https://community.cartalk.com/u/oldtimer-11)\
**Post date:** [April 6, 2012, 9:38am UTC](https://community.cartalk.com/t/overheating-coolant-start-up/71788/3 "2012-04-06T09:38:41Z")

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I think you have a radiator fan that has not been working and you have ignored the overheating because it went away when you were moving. Now you have a leaking head gasket.

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**Author:** ![JKing106](https://avatars.discourse-cdn.com/v4/letter/j/a587f6/32.png) [@JKing106](https://community.cartalk.com/u/JKing106)\
**Post date:** [April 7, 2012, 4:56am UTC](https://community.cartalk.com/t/overheating-coolant-start-up/71788/4 "2012-04-07T04:56:30Z")

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[http://secure.steelseal.com/index.php/ppc1?gclid=CL2LkezDoa8CFcyP7QodfndDaA](http://secure.steelseal.com/index.php/ppc1?gclid=CL2LkezDoa8CFcyP7QodfndDaA)