d0 Luck

i was driving uphill on a freeway entrance all the way through 3rd gear redline, then all of a sudden... the car begins to idle very poorly. way below 500 rpm's, and the rpm needle just bobs up and down and won't hold a steady RPM.

did i just lose compression? (busted apex seal(s))?

this is on a stock 139k GSL-SE motor btw. which i had no problems whatsoever before.

also, where can i buy a reliable/trusty compression tester?

thanks in advance

cdrad51

Did you blow your engine noob?

Luckily for you, it is probably just a vacuum leak. Grab your can of carb cleaner, and let the hunting begin!

Oh, and to be sure, did you do a ghetto compression test?

IanS

iTrader: (4)

I thought september comes BEFORE november. Hmm, I guess we are all noobs

cdrad51

hehehe. With Noluck, it's an inside joke. From the Wesssssstside.

Siraniko

iTrader: (13)

I say JUNK IT!!

calvinpaul

iTrader: (2)

And give me the engine...

d0 Luck

no vacuum leak. it's 2 blown igniters.

web777's gonna hook it up w/ the igniters already. so i just gotta pick 'em up.

d0 Luck

alright, so when do you want me to pick your motor up?

d0 Luck

yes cuz cdrad's uber

cdrad51

yeah, that'll do it too. about 3 weeks ago my leading ignitors went out and I thought it was a vacuum leak. Got the ignitors replaced. A week later I developed a vacuum leak. I thought my leading ignitors had gone again. Funny. The symptoms are very very similar.

cdrad51

Jeff20B

iTrader: (13)

I thought I had a vacuum leak but it was a bad ignitor too. I corrected the ignition and then used some propane to check for any leaks around the manifold and carb. The idle did change a little, but I never determined where the leak was. Then I swapped the manifold and carb onto another engine and it ran fine. Weird.

The manifold is off again and I think I finally found where the vacuum leak was. It turned out to be a vacuum cap that has little cracks around it. Cheap rubber.

cdrad51

I know, I found one of those in the manifold too. The rubber cap just kinda melted I guess from the headers' heat - it was the cap of the line going to the AAV, so it's close to the headers.

d0 Luck

motor now sounds like a half bridge running only on the trailing coils... lol