Question about 2003 Chevrolet Blazer

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I went to Autozone and a Vacuum leak at engine was the problem. What part will I need to fix it? it's a 2003 blazer

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Forget ottozone, find a repair shop to find the problem and repair you truck

Posted on Nov 10, 2010

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My '04 blazer has been revving erratically when I start it. Goes back to normal after a couple minutes of warming up, but when I drove without the warmup it was revving up on its own even when I h


I had an 04 blazer. There is an undocumented problem with leaks in the intake manifold. The original gasked was low quality. I would expect that you have a vacuum leak in the intake manafold. My problem was a coolant leak. Replacing the manifold gasked fixed it.
If not this, make sure you do not have any creaks or opening in the air hoses that fed the throttle body.

Apr 14, 2013 | 1996 Chevrolet Blazer

1 Answer

2003 lincoln navigator sputtering while driving


Hello, what you need to do first is get a scan of the engine. You can get a free scan at Autozone, Oreillys, Advance and perhaps your local places. Some faults will be recorded in the onboard computer, ask for Alternator test too. If you can get a Code number we can explain it for you.

Other defects, like Vacuum leaks and fuelpump pressure need different testing. This sounds like a EGR Solenoid going bad, but not bad enough to establish a check engine light. If you temporarily disconnect and plug the Vacuum hose to the EGR valve, you can drive it and see if the sputtering stops with the part eliminated. This may trigger a check engine light but the Code can be erased with a scanner or by disconnecting the NEG terminal of the Battery. The preferred method is to use a scanner(Autozone, etc.). I have the identical Year engine in my truck.

Vacuum leaks- use a spray water bottle and go aroung the gaskets on the Intake manifold while the engine is running. Also spray the Brake booster and if the RPM changes at either place you need to fix the leak or replace a part. Fuel pressure-This requires a gauge test on the fuel rail test port. Your fuel Regulator can be sticking, dirty fuel filter, fuelpump going out, the tests will tell. You can take it to an Independent or Dealer for these tests.

I hope you find my solutions helpful and please let me know what you discovered.

Dec 07, 2010 | 1999 Lincoln Navigator

1 Answer

2003 Ford Expd. running rough @ idle -


There could be many issues. These codes read your engine is running too lean. Check : all your vacuum hoses for leaks, PCV valve and hose, MAF sensor. This may require an experienced technician to figure this out. Hopefully I help'd!!

Apr 05, 2010 | 2003 Ford Expedition

1 Answer

How to fixHow to Fix a Chevy Blazer engin block


The freeze plugs are normally located on the side of the engine block.Make sure first thats what the problem is.This link will help you with your problem.Please rate my assistance towards your problem thanks.
http://www.autozone.com/autozone/repairinfo/common/repairInfoMain.jsp?targetPage=productsHowToInspect&leftNavPage=productsHowTo&pageId=%090900c152802140b9&subtitle=replace

Feb 13, 2010 | 2001 Chevrolet Blazer

2 Answers

2003 Ford Taurus stalls at idle


go to autozone.com and register for free. You will then have a full free online repair manual with step-by-step directions, diagrams, troubleshooting, testing, replacing, and more. As an automechanic myself, this a wonderful site.

Jul 09, 2009 | 2003 Ford Taurus

1 Answer

Overheated 2003 Chevy Blazer


You may have an internal leak,they are common for some of the G.M. engines. Some of the engines are : 2.8L,3.1L,3.4L,3.8L,4.3L,,,, if this is the case you may be able to get a refund,or partial refund from G.M... I would confirm the problem first,then contact a G.M. dealership or 2,to see what they say.
If there is any kind of rattle or rapping in the engine now,,,,, a repair is too late,the damage is done.

Jun 25, 2009 | 2003 Chevrolet Blazer

1 Answer

2003 Blazer - Oil coming from climate control vacuum connector


May sound silly but take a short length of hose and put one end to your ear and use the other end to probe for the leak. It will be substantially louder as you get nearer to it. As far as the oily stuff in the lines, I can't think of anywhere it could be coming from unless the master cylinder is leaking into the power booster and somehow getting into vacuum lines...but this should not happen because any fluid in there would be drawn into the engine, and, the master would be low??? Try to find the leak first and deal with the other thing later...it may turn out to be a "nothing" item.

Apr 15, 2009 | 2000 Chevrolet Blazer

2 Answers

Check engine light/vacuum leak


First thing to remember autozone people ar not experts in the automative diagnostic world, if they were they would be earning 50 - 75,ooo per year as a technician, not 25,000 as a desk jockey. You need to go to a mechanic that has a computer to hookup to your car and tell you what the check engine light is on for. then you can fix the exact problem instead of poking around in the dark at the problem until you get lucky and have it fixed for a week or two,

Dec 29, 2008 | 1995 Geo Metro

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