checking engine out?

[Amphilophus]

I am wanting to check out how my engine is doing. I was going to doa compression test and I wanted to first doa vacuum test but I dont know how on a new car? can it be done without a scan tool? I looked but didnt find a fitting to connect a guage to? anything else that I could do to check out the condition of my engine? thanks.

[Fredless]

go to autozone and get it scanned for free.

[Rob Bell]

All you have to do is disconnect a vacuum line that has vacuum all the time, and connect that line to your vacuum gauge. If you get vacuum at idle, that line should be good enough.

[OneQuickV6]

Originally posted by Fredless:
go to autozone and get it scanned for free.

Autozone doesn't do vacuum or compression testing...also, your motor can be on its last leg, with no compression to speak of, and Autozone's scan might not show anything out of the ordinary!

[terminaldegree]

used oil analysis by someplace like Blackstone Labs, maybe? It could show bearing wear, a fuel system problem, a head gasket leak, etc. before they become obvious [or so they say].

[Amphilophus]

cool thanks for the suggestions

[HBHRacing]

if you had ascces to a scanner that showed you live data you can figure engine vacuum using MAP sensor voltage.

but look for 19Hg of vacuum when your gauge is hooked to the intake at idle