Nope, just a burnt out bulb. Still think it's related to an air pocket in the cooling system....

 

I am currently having the exact same issue as scrappy.and I have recently noticed that when this happens the heat doesnt work.also when in Park the idle is erratic from high to low. did you solve the mystery scrappy?

 

Seeping Head Gasket

I am sorry, but I agree with an earlier post. This problem is typical of a seeping (not quite blown yet) head gasket. It won't show up on a block test, especially if the engine is cold. It can be intermittent at idle or under load.

I know SR5Guy put up a test procedure for this on the .org website. I have seen this problem on 2 Legends that I have owned with similar symptoms. I replaced just about everything coolant related until I bit the bullet and pulled the heads to take a look. Sure enough, the start of a fail at cyclinder number 6 in the back passenger rear.

Good luck. If you find out it's something else I would love to hear a new mystery voodoo.

Scorch

 

OK. Just had a "chemical" test done, and it definitely has a head gasket leak. The car is still drivable, particularly after a good bleeding, so I will be getting the head gaskets replaced in early june, when I can afford to have the car out of commission for a couple weeks. Will report back then....

 

Well, the mystery is solved its a blown head gasket! anyone have recommendation on what brand head gaskets I should buy? I was going to go with beck arnley but the mechanic recommended fel pro.

 

Another 2 bite the dust.

I usually buy the Felpro Kit which includes everything for the top end including valve guide seals.

 

Thanks! I bought a felpro from rockauto not the kit though.just left and right maybe i should buy the valve seals while im at it.

 

It's not too late to buy the kit minus the head gasket.

I'm not trying to tell ya what to do, but in the end you are going to need just about every gasket in that kit. And yeah, while you have the heads out you are probably going to want them cleaned up at a machine shop. Have them put the new valve guide seals in for you. I know you don't want to spend the money, and neither did I, but buying all those gaskets individually costs a lot more.

Yes, your sedan is a nice one. Keep up the good work.

 

BTW, this is the car in question. She's definitely worth saving...

 

Agreed. Looks very sharp.

 

Well, had the head gaskets replaced, and that fixed it. Hooray! With all the extra parts (hoses, O2 sensors, plugs, etc etc etc) came to $2800 and took nearly a month to complete, but worth it to finally have my car back. It runs great, and have driven about 200 miles so far without an issue.

 

Glad to hear this and good save of a legend.

 

Crap. I have the same symptoms and was hoping to find a simple solution here. Yes, it's quite possible another one will bite the dust.