my blazer has STARTING problems

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my blazer has STARTING problems

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Blazer Forum >> Mechanical & Maintenance >> General Tech Help >> 1st Gen S-series (1983-1994) Tech >> my blazer has STARTING problems

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my blazer has STARTING problems - 1/1/2006 6:09:17 PM

Dean S

Posts: 5
Joined: 1/1/2006
Status: offline

my 87 blazer wont start until it turns over for 15 seconds? i changed the relays on the finder thanking it was a fuel pump relay but i noticed that it starts up after the oil pressure gauge moves to 15 psi or if i give it a shot of starting fluid. after it starts it runs fine???????????? any HELP OUT THERE 2.8 auto matic TBI

Post #: 1

RE: my blazer has STARTING problems - 1/1/2006 11:20:29 PM

Hanr3

Wheels & Tire Moderator
Posts: 3523
Joined: 5/11/2005
Status: offline

It could be a faulty oil pressure sending unit.

My '87 2.8 S10-Blazer has two diferent oil pressure sending units. Most repair manuals show either a 1 wire, 2 wire, or 3 wire unit. I have a 2 wire & a 3 wire units. The oil pressure sending units are located next to eth oil filter. Take a look at your and post up what oyu have.

Take a look at Autozones web site. They have wireing diagrams for our trucks on line.

_____________________________

"Some people spend an entire lifetime wondering if they made a difference.
The Marines don't have that problem."
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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 Dean S)

Post #: 2

RE: my blazer has STARTING problems - 1/2/2006 2:01:01 PM

Canadian88

Posts: 489
Joined: 11/23/2005
From: Detroit
Status: offline

This is quite inlikely, but its a cheap fix, and its easy to check. If you live in a cold environment, and some moisture got into your distributor cap, it may have frozen, expanded, and cracked it. It is held down with two screws, and it costs less than ten bucks. Just take it into a dark room and put a flashlight under it to see if there is any light coming through where it shouldn't. Its a long shot, but its cheap.

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2003 4.3L 2WD Blazer 2DR K&N air filter
Alpine S-type speakers in all 4 corners
Damplifier behind all speakers and in cargo area
Alpine CDA-9856 (iPod interface)
Alpine 10" type S Sub with 400W Alpine MRP-M450 amp www.secondskinaudio.com

(in reply to Hanr3)

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RE: my blazer has STARTING problems - 1/30/2006 12:51:35 AM

matt_87_s10_blazer

Posts: 20
Joined: 12/10/2005
Status: offline

my 88 with the 2.8 did the same thing and i dident know what it was so i went and got the tbi unit off my old one (blown moter) and put it on now it starts right up

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had 88 s-10 blazer 2dr 4wd
geting 87
wrecked poor 91 probe lx

(in reply to Canadian88)

Post #: 4