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Registered
1996 Sedan Deville, Gone"1990 Brougham,1995 STS
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7 Posts
Discussion Starter #1
Please help here. My Deville has 68,000 miles on the clock, I changed the Fuel Pump (Delco unit),Fuel Filter, Fuel pressure Regulator, plugs , and wires. This car still is hard starting. Once it fires it is perfect all day. What else is left to change??.

Please help here, Im stumped now..
Thank You, John S
 

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Master of the Dark Art of Diagnostics
2003 DHS - two-2002 DHS, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
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19,261 Posts
check for trouble codes -
 

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Registered
98 DeVille, 97 DeVille d'Elegance
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7,345 Posts
I agree with checking fp and especially when sitting long time, maybe leaking down issue such as stuck injector.
 

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Registered
1996 Sedan Deville, Gone"1990 Brougham,1995 STS
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7 Posts
Discussion Starter #5
Thanks, as far as I know the TB has never been touched.
 

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Super Moderator
White Diamond '03 DHS (with DTS floor shift)
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86,781 Posts
Would be a good idea to clean it then.
I think there is a tutorial in Tech Tips if you need it.
 
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