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74 Valiant 3.7 225. In drive motor surges and Voltage drops
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Author:  ValiantEric74 [ Sat Sep 13, 2014 9:06 am ]
Post subject:  74 Valiant 3.7 225. In drive motor surges and Voltage drops

This started a few weeks ago. Cooled starts rough and once warm runs fine. Once HOT engine surges ONLY in gear. If I place the car in neutral it stops. I just replaced my alternator, thermostat. I checked for shorts on wires for the temp sensor, and replaced the volt regulator. But, agai n this only happens once the engine is hot not cold or warm. I can drive about two miles and it begins. my next thought was to change the trans fluid and filter.



I was just told to look for a vacuum leak on the carb. base to use break cleaner and spray around the carb to see if it idles up.

Looking for any helpful hints.

Thanks

Author:  wjajr [ Sun Sep 14, 2014 4:17 am ]
Post subject: 

Quote:
base to use break cleaner and spray around the carb to see if it idles up.
Safety Alert:

Please NEVER NEVER USE BRAKE CKEANER where is going to be combusted! Chlorinated whatever the rest of the compound 's name is will turn into a deadly chlorine gas derivative not unlike what was use in WWI... Just a whiff of the combustion product will cause nerve damage.

Instead use carburetor cleaner or water when locating vacuum leaks.

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