Engine Flush

[dalejrfan71]

My car has 282,050 kilometers on the odimeter. Is it safe to do an engine flush? My car failed Emissions Testing and my brother who is a licensed mechanic wants to an engine flush on my car.

 

[Turk]

Sure it should be safe.

Change the oil, but as or more importantly, change the PCV valve. Change the spark plugs if they are old too.

Good luck!

 

[chrome]

I don't see a correlation between failing an emission test and performing an engine flush as a remedy? The most possibly cause for failing emission testing is an ineffective catalytic converter, or a stuck EGR valve, or old oxygen sensors. Have those checked out first, before you start on an engine flush which likely won't help you pass.

 

[paulo57509]

If you post your emissions test numbers, what failed, etc. someone here could probaly point you in the right direction for a fix.

Oh, yes...make, model and year vehicle?

 

[Turk]

Right, it's "safe" but not what I would do pass emissions.....

An indicator would help of course, but if one is not available it would be:

- Tank with Amsoil PI

- New Plugs

- New PCV

- New Air filter

- Oil change

...and go from there.

 

[dwendt44]

And make sure the thermostat is working properly.
Also have the car at full operation temperature before test.
A good run in the contry(blow the carbon out) is a good idea too.

 

[dalejrfan71]

My car is a 1995 Saturn SL1 with 282,060 kilometers on it.
Here are the test results

ASM 2525 Curb Idle
Limit/reading/result - Limit/Reading/Result
HC ppm 75 115 Fail 200 198 Pass
CO % 0.42 4.23 Pass 1.00 0.50 Pass
NO ppm 576 1225 Fail N/A N/A N/A
RPM 1781 Valid RPM 751 Valid
Dilution 14.8 Valid Dilution 14.9 Valid

 

[firemachine69]

Cole's Notes please. What exactly failed?

 

[chrome]

Looks like he failed the NO, more than twice the permitted level. Check your EGR valve first of all.

 

[Donald]

I would NOT do a flush, as it will not help and could damage the engine. If a flush is needed, then go with Auto-Rx. But better to find the real problem and solve it as others have mentioned.

 

[dalejrfan71]

Update!! My brother borrowed a friends code reader to hook up to my car and he has a catalytic converter on standby. He's not gonna do an engine flush just yet.