2003 Chevrolet Blazer Logo
Posted on Aug 27, 2008

2003 Chevy Blazer won't start

Okay here is what is going on - my 2003 chevy blazer in the last 2000 miles (first 145,000 with absolutely no problems - bought new with 3 miles on it) has decided to randomly not start.

It turns over, but won't start. Fuel pump is pumping, see spark from distributor cap, replaced Fuel Pressure Regulator and twice towed to Chevy dealer to check. Both times it cranked for them and they found nothing wrong with it.

Any ideas please? I am so tired of it not being reliable after 145,000 miles of perfection.

Thanks!

  • 1 more comment 
  • Anonymous Sep 06, 2008

    My 2003 blazer also sometimes won't start. It cranks but does not turn over. If I wait 10 minutes it will start right up. I added an aftermarket (Prestige) remote starter to it 4 years ago and sometimes the Security light will come on too.

  • mdv2000 Sep 16, 2008

    Well, after fixing a faulty Oxygen Sensor, MAP Sensor and replacing a Fuel Pressure Regulator, the Fuel Pump finally died. I guess, it was a combination of things.... Seems to be running fine now. We'll see if it leaves me stranded again!

    Mike



  • Anonymous Dec 28, 2008

    My 2003 is in the same boat. Engine cranks normally, fuel pump is running, but just doesn't want to start. Occasionally it attempts to but stops. I took apart the distributor cap and replaced the rotor. After that no problems for weeks. It dies again. Removed the rotor, cleaned it with a brush and it's now fine. Third time now same situation. Looks to be very wet under the hood from a storm so I'm thinking moisture in the cap. Replacing cap & rotor as a set today hoping it works. Has 60k on odo and rarely gets driven.

×

3 Answers

Anonymous

Level 1:

An expert who has achieved level 1.

  • Contributor 1 Answer
  • Posted on Jan 14, 2009
Anonymous
Contributor
Level 1:

An expert who has achieved level 1.

Joined: Jan 14, 2009
Answers
1
Questions
0
Helped
3038
Points
1

98 chevy blazer wont start when temp goes below 15 degrees starts and runs fine rest of time have new battery and altenater

A

Anonymous

Over the past 4 days my 2003 Blazer, 4.3, 4wd, started having starting problems. Alternator gauge went high and low on the day before it died, figured it was like the battery was being drained at low RPM. Finally quit in the garage the next day. Replaced the battery (no cost) and then the starter sounded like it went. (Got the high squeal) could it be the starter went bad and started shorting out?

Ad

Anonymous

Level 1:

An expert who has achieved level 1.

  • Contributor 1 Answer
  • Posted on Sep 04, 2008
Anonymous
Contributor
Level 1:

An expert who has achieved level 1.

Joined: Sep 04, 2008
Answers
1
Questions
0
Helped
3038
Points
4

Have the computer checked out. may need reprogramming and have updates added. also check for loose or corroded connections at the terminals.

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

2000 chevy blazer won't get over 2200-2300 rpms and has whistle

kinda sounds like the catilist in the converter is bad and the exhaust cant get out
0helpful
2answers
0helpful
2answers

2000 chevy blazer (4.3 engine) has a hard time starting in the

dirty fuel filter or faulty pump....just a guess...
1helpful
1answer

I have a 2003 chevy blazer but no heat,nothing but

Start by flushing your coolant system and replacing your thermostat. You may later find that you have a clogged heater core.
5helpful
1answer

Driver Side Window won't work- Chevy Blazer 2003

If it does not make any noise, or sound like its getting any power, most likely its the switch.
0helpful
1answer
0helpful
1answer

I need to know the color code of my Chevy Blazer 2000 it is green

Check for sticker in glove box. Bunch of numbers & letters, usually last line.(bottom line)
Not finding what you are looking for?

3,048 views

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

john h

Level 3 Expert

29494 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

15088 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...