Dodge Ram 5.7L V8 4x4 (wont start during hot weather)

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Chubzz

Junior Member
Joined
Aug 15, 2017
Posts
3
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0
Ram Year
2003 Dodge Ram 1500 4x4 Quad Cab
Engine
5.7L V8
I am having a problem during the hot days the truck wont start but early in morning the truck fires right up. i took it to shop they said it was ignition switch replaced it, went about a month and started doing it again. only happends during the hot weather days. just trying to get some other opinions before i try other things.
 

bhonshell37

Senior Member
Joined
Dec 15, 2016
Posts
892
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276
Location
Washington
Ram Year
2017
Engine
hemi 5.7
I have the same problem. I have replaced the crankshaft position sensor, camshaft sensor and coils. Problem still exists

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SYKRAMMAN

Banned
Joined
Jul 10, 2017
Posts
2,401
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1,640
Location
Jersey shore
Ram Year
06 Mega
Engine
5.7
I am having a problem during the hot days the truck wont start but early in morning the truck fires right up. i took it to shop they said it was ignition switch replaced it, went about a month and started doing it again. only happends during the hot weather days. just trying to get some other opinions before i try other things.

Replace your iat sensor and map sensor, both are cheap enough to eliminate cause.
 
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