Engine Problem When Starting

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Engine Problem When Starting

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Blazer Forum >> Mechanical & Maintenance >> Engine & Transmission >> Engine Problem When Starting

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Engine Problem When Starting - 3/31/2008 11:25:51 PM

zach_23

Posts: 2
Joined: 3/31/2008
Status: offline

Hello. I've been having a problem lately when first starting my Blazer after it has been sitting for an extended period of time (8 hours or so). I turn the key and it kind of sputters like it doesn't want to start, but then it turns over and starts. This only happens if it has been sitting an extended period of time such as over night or while I've been at work all day. It starts up just fine if it has only been sitting for a short time. I dont know if it is the starter or the alternator possibly but I dont really think it would be. However, I am no mechanic so I have come here for help. Sorry for the long post, but hopefully someone can help me. Thanks!

*Combining consecutive posts.

Sorry, I forgot to put my signature at the bottom....

I have a 2000 Blazer, 2 door 4x4, 4.3L V6 Vortec Engine

< Message edited by TripleBlackBlazer -- 4/1/2008 7:47:44 AM >

Post #: 1

RE: Engine Problem When Starting - 4/1/2008 8:23:32 AM

blazenhustle

Posts: 9
Joined: 3/30/2008
Status: offline

well, mines used to do that...

and i blew a head gasket...

simple signs to look for:
check oil
check radiator
check to see how much water it's drinking
is it overheating?

check the airfilter to see if the pipe is clear..
*mines was filling up with oil, that's how i knew i had a serious problem...

take it to a shop and get a diagnostic test...

(in reply to zach_23)

Post #: 2

RE: Engine Problem When Starting - 4/1/2008 11:56:13 AM

rriddle3

Posts: 1312
Joined: 12/22/2006
From: Fort Worth,Texas
Status: offline

I'm going to guess fuel pressure regulator leak-down. Hook a fuel pressure gauge to the schraeder valve on the fuel inlet line on top of the engine, turn the key to the 'on' position and see if the pressure is ~51-63psi. Turn the key off and the pressure should not drop more than ~2-3psi. If it continues to drop over the next several minutes, you have a fuel pressure regulator problem. Let us know what you find.

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2002 Blazer LS 4dr 2WD Auto Trans
Hypertech PP III Programmed
Flowmaster 50 Series Delta Flow Muffler, C6 Corvette Exhaust Tip
TYC Elegante carbon fiber tail lights

(in reply to zach_23)

Post #: 3

RE: Engine Problem When Starting - 4/1/2008 8:39:15 PM

Hanr3

Wheels & Tire Moderator
Posts: 3476
Joined: 5/11/2005
Status: offline

Sounds like either the battery or starter to me. Drive to you local autoparts store and have them test them. I suspect its the battery, got a dead cell. It'll hold a charge for a little while, the longer it goes the more it drains off.

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'87 S10-Blazer - SOLD
'93 S10-Blazer 4x4x4 - Sons DD, engine swap is done.
'00 S10-Blazer 4x4x4 - My

(in reply to rriddle3)

Post #: 4