1999 Cadillac Deville hard starting

CHEV104275

MEMBER
1999 CADILLAC DEVILLE
V8
FWD
AUTOMATIC
68,234 MILES

When the car is dead cold it starts fine after it warms up it has a real hard time starting it takes a few cranks or one real long one ive replaced the fuel filter and plugs what should I do next?

Friday, January 11th, 2008 AT 9:03 AM

3 Replies

BUZZSAW

MECHANIC
1,198 POSTS

What kinda plugs? You need to scan the pcm for codes, push off and warmer on heater controls and it will go into diagnostics, write down the codes and give them to me, plugs are replaced at 100k miles

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Friday, January 11th, 2008 AT 4:49 PM

CHEV104275

MEMBER
2 POSTS

What kinda plugs? You need to scan the pcm for codes, push off and warmer on heater controls and it will go into diagnostics, write down the codes and give them to me, plugs are replaced at 100k miles[/quote:6e80211841]i used autolite plugs I only replaced them to try and repair the concern there are no pcm codes

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Saturday, January 12th, 2008 AT 8:14 AM

BUZZSAW

MECHANIC
1,198 POSTS

What kinda plugs? You need to scan the pcm for codes, push off and warmer on heater controls and it will go into diagnostics, write down the codes and give them to me, plugs are replaced at 100k miles[/quote:5d09db6d6e]i used autolite plugs I only replaced them to try and repair the concern there are no pcm codes[/quote:5d09db6d6e]

a couple questions? Where do you live? (Roundabout)
a cheap part to try is a fuel PSI regulator, get it at the dealer 25-30 bucks, its in the fuel rail, something else to try is crank sensors, both of them, a crank sensor relearn will have to be done after, at the dealer, ( a tech 2 diagnostic reader is needed to do it ) I would do this first!

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Sunday, January 13th, 2008 AT 12:04 PM