CHECK ENGINE LIGHT ON ECU COD INTAKE VACUM LEAK WHAT IS MOST COM PROBLEM WITH THE 2.5 AND VACUM LEAK

Question 1

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1answer

Check engine light comes on, gives codes 171 and 174

great!

P0171, p0174. That relates to lean, banks 1 & 2.....i assume you are driving a windstar? no information given here extept its a ford....the windstar was notorious for the intake manifolsd gaskets and isolator bolts losing their sealm causing a vaccum leak. if you drive a vehicle with 4.0 liter engine (ranger or exporer) check the pcv elbor on passenger front corner of engine..it is a bout a 3/4" hose...at the elbow it would be collapsed and leaking....most vacum leaks can be found by spraying carbuetator cleaner around intake and vacuum lines...the engine idle speed will flare up when you spray near the leak...hope this helps!!

Jun 30, 2011 • Ford F-150 Cars & Trucks

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2answers

P0302 cod mazda tribute 2001

www.engine-light-help.com/generic-engine-check-light-codes.html

Feb 26, 2011 • 2000 Mazda Protege

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1answer

1999 escalade had intake leak. leak is now fixed but service engine light is on an computer shows mis on 3-4. what should i do?

If the engine is running smooth clear codes and start again if the code come back start check in all vacum hose then check your ignition wires on 3and 4 fireing order Good luck Doug

Nov 28, 2010 • 1999 Cadillac Escalade

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1answer

99 mercury sable automatic trans vehicle idles very low randomly even stalls out sometimes high idle occurs as well reaches about 4000 rpm at times. engine light threw 4 codes, all to do with o2 sensors...

Sounds like a broken or torn vacum hose, pcv valve clogged, or bad Idle air control motor. Did you spray carb cleaner on vacum hoses or near the plastic intake., and did the motor rev up or down? Those codes represent a lean condition which means most like a vacum leak or clogged idle air motor. Sometimes the intake manifolds crack or the intake manifold gaskets crack. FInd that vacum leak or inpect iac motor

Oct 28, 2010 • Mercury Sable Cars & Trucks

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1answer

Ihave 05 durango with 4.7 have black sutt around the tailpipe and code for the check engine light is for egr valve or vacuum leak

sounds like a stuck EGR valve causing the engine to run ritch , could also be a vacum leak at the intake area ,you should be able to hear this it would be a hissing noise while the engine is idling .

Apr 09, 2010 • 1999 Dodge Durango

1helpful

1answer

1999 mazda 626 4cyl runs rough at idle , engine dies at idle. check engine light on fault code 171 looked for vacum leak none found. replaced MAF sessor no help. any ideas

You may have to dig deeper for a vacuum leak. It's possibly the intake manifold gasket. Try spraying some starting fluid around the intake manifold. Also try disconnecting the brake booster and plugging that hose, the diaphram in the booster could be ruptured, causing a vacuum leak. Check the PCV valve and hose too.

Mar 05, 2010 • Mazda 626 Cars & Trucks

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1answer

Windstar 2000 no vac at the booster-have great vac at the carb. just have regular brakes , no power brakes. don't believe to have a leak or at least one that I can hear engine runs fine

Check vacum at brake booster if you have vacum there bad brake booster, if you don't follow vacum line check there, vacum line should go to intake, if you do have vacum replace vacum hose.

Dec 13, 2009 • Ford Windstar Cars & Trucks

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2answers

Im hearing a larg vacum leak near the fire wall behind the intake manafold do i need a new manafold gasket

First check all vacum lines to see if any are cracked or loose

Nov 08, 2009 • 2001 Nissan Maxima

5helpful

1answer

I have fault code 00575 intake manifold pressure on my audi a4 soft top were in engine is this component found

I assume it is a turbo diesel? Then:

Location of the sensor:
- in early cars is in the ECU, with vacuum pipe going from intake maniforld duct to the ECU
- later models on the air intake duct, with wiring going to the ECU.

The fault may often be caused by:

- air leaks in MAP sensor line to the ECU (early ones only) or any of the vacuum control line hoses. This normally due to perished/loose flexi pipes, etc).
- leaks in the air hoses going between turbo/engine/intercooler. Can be spotted by slight oil contamination at the point of leak.

Or it's variable vaine sticking (even intermittently) in the turbo due to contamination, preventing the turbo from performing according to the ECU demand, and hence being 'shut-off' by th ECU

So - check all vacum line for leaks, ensure turbo actuator is free to move, all air hoses are intact and secure, intercooler not leaking.

Jul 12, 2009 • 2000 Audi A4

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1answer

Ford focus engine problem

you have a vacum leak on the back of the intake manifold

Oct 21, 2008 • 2000 Ford Focus

Question 2

Anonymous

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Posted on Nov 28, 2010

Anonymous

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Hello...

I am not sure about your exact car. Im sorry, but I dont know EVERYTHING. However most vac leaks are caused by a hose. If not the hose then by a loose intake manifold, or bad manifold gasket. Sometimes the manifold itself can crack.

The EASIEST way I have found to run down a vac leak is to buy a can of SPRAY carb cleaner, most autoparts stores have this stuff. With the engine running spray the carb cleaner near suspected leak sites. The ends of hoses, down along the intake gaskets, pretty much anywhere air can go. When you find the leak your engine will SPUTTER. Sometimes it will even die. Carb cleaner doesnt burn that great apparantly and when it gets SUCKED IN to the fuel air mix it throws it off.

Once you find the site of your leak the fixes are pretty easy. From what I have read recently alot of people seem to be getting away with just tightening bolts this winter. I dont know if the sudden change in temp or just everyones cars seem to be about the same age.

Anyhow thats how I find intake leaks.

I hope this helps

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CHECK ENGINE LIGHT ON ECU COD INTAKE VACUM LEAK WHAT IS MOST COM PROBLEM WITH THE 2.5 AND VACUM LEAK

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Anonymous

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Related Questions:

Check engine light comes on, gives codes 171 and 174

P0302 cod mazda tribute 2001

1999 escalade had intake leak. leak is now fixed but service engine light is on an computer shows mis on 3-4. what should i do?

99 mercury sable automatic trans vehicle idles very low randomly even stalls out sometimes high idle occurs as well reaches about 4000 rpm at times. engine light threw 4 codes, all to do with o2 sensors...

Ihave 05 durango with 4.7 have black sutt around the tailpipe and code for the check engine light is for egr valve or vacuum leak

1999 mazda 626 4cyl runs rough at idle , engine dies at idle. check engine light on fault code 171 looked for vacum leak none found. replaced MAF sessor no help. any ideas

Windstar 2000 no vac at the booster-have great vac at the carb. just have regular brakes , no power brakes. don't believe to have a leak or at least one that I can hear engine runs fine

Im hearing a larg vacum leak near the fire wall behind the intake manafold do i need a new manafold gasket

I have fault code 00575 intake manifold pressure on my audi a4 soft top were in engine is this component found

Ford focus engine problem

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CHECK ENGINE LIGHT ON ECU COD INTAKE VACUM LEAK WHAT IS MOST COM PROBLEM WITH THE 2.5 AND VACUM LEAK

1 Answer

Anonymous

Add Your Answer

Attachments: Added items

Related Questions:

Check engine light comes on, gives codes 171 and 174

P0302 cod mazda tribute 2001

1999 escalade had intake leak. leak is now fixed but service engine light is on an computer shows mis on 3-4. what should i do?

99 mercury sable automatic trans vehicle idles very low randomly even stalls out sometimes high idle occurs as well reaches about 4000 rpm at times. engine light threw 4 codes, all to do with o2 sensors...

Ihave 05 durango with 4.7 have black sutt around the tailpipe and code for the check engine light is for egr valve or vacuum leak

1999 mazda 626 4cyl runs rough at idle , engine dies at idle. check engine light on fault code 171 looked for vacum leak none found. replaced MAF sessor no help. any ideas

Windstar 2000 no vac at the booster-have great vac at the carb. just have regular brakes , no power brakes. don't believe to have a leak or at least one that I can hear engine runs fine

Im hearing a larg vacum leak near the fire wall behind the intake manafold do i need a new manafold gasket

I have fault code 00575 intake manifold pressure on my audi a4 soft top were in engine is this component found

Ford focus engine problem

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Check engine light comes on, gives codes 171 and 174

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