99 Suburban will not start

LAURIEANNE

MEMBER
1999 CHEVROLET TRUCK

Have a 99 Chevy Suburban, 123K miles, 5.7L--will not start--it attempts to then nothing. Changed the battery to no avail--had the starter benched checked and it was fine. The starter relay seems okay (swapped it with another), and all fuses are good.

5 Replies

CHEVY22

MECHANIC
1,375 POSTS

I need some clarification, the engine turns over slow and then stops?

Let me know

jim

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Monday, February 26th, 2007 AT 3:59 PM

LAURIEANNE

MEMBER
4 POSTS

It starts to turn over, starter engages, fuel pump is energized, it cranks for a few seconds, sounds like it catches then nothing (even if still holding key to start). The fuel pump was replaced about 5 mos ago. First thought battery was the problem because the truck sounds "weak" when trying to start. Had this problem about 3 mos ago, but it fixed itself after several start attempts--no such luck today.

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Monday, February 26th, 2007 AT 4:06 PM

CHEVY22

MECHANIC
1,375 POSTS

One small check if you have a volt meter is have someone hold leads on the battery while you crank, to determine if the starter is drawing too much

jim

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Monday, February 26th, 2007 AT 4:26 PM

LAURIEANNE

MEMBER
4 POSTS

Checked volts--about 10 while trying to start at one point dropped to 9. Sounds like it is going to start and then it sounds like a bad battery--the "wah" sound.

For kicks, ohmed both battery cables--they were good.

Recently replaced plugs, but going to look at coil. Running out of places to look.

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Monday, February 26th, 2007 AT 5:21 PM

LAURIEANNE