I replaced Bosch spark plug with AC.

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May 27, 2004 | 10:49 AM

#11

willwren

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Vital, a failing O2 sensor will be indicated by the obvious fuel mileage drop, a rotten egg or sulphur smell, and a premature failure of the catalytic converter. The sensor will RARELY throw an SES light. Only a complete failure will do that. The sensor will get 'lazy' after about 50-60k miles.

My O2 from Bosch lasted less than 30 days. Jr's3800 had a similar experience. My AC Delco sensor has been in for over 20k miles now, and doing fine.

May 27, 2004 | 11:19 AM

#12

vital49

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From: Purgatory

Thanks Bill....I will closely monitor for those symptoms.

May 27, 2004 | 11:43 AM

#13

karfreek

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From: Brewerton NY

Quote:

Originally Posted by vital49

Quote:

Originally Posted by thaf

Quote:

Originally Posted by willwren

Use a syringe and apply some break free or penetrating oil when the engine is warm. Do that for 2 days. On the 3rd day, try to remove the plug with the engine COLD.

I agree with you completely on the Bosch plugs. We've been through that time and time again on this forum. For some reason, our hotter running engines don't like them. Rear plugs will almost always foul first. Hotter back there

Sorry that I did not explain my problem clearly.

IT is not the plug itself hard to be moved, but the wire. I can not take the wire off from the spark.

Thanks

I had the same issue on my Bonnies. What I did (against recommendation on this forum) is remove the stabalizing bar that goes from strut tower to strut tower. That really opens up the clearance. Just make sure you reinstall it in the EXACT same location from which it was removed or else the alignment will be off. I did mine carefully multiple times and never had an issue. It'* worth it in the end to gain the clearance. Good luck!!

If you leave the brackets mounted to the strut tower and just undo the 2 bolts on each side that fasten the bar inplace, it will not cause any problems. Its when you move the brackets that you can skew the alignment as it is the strut mount bolts that hold the brackets on.

On the 96-99s it is easier to drop the bar, as there is more clearance between the bar and the master cyl.

Jay

May 27, 2004 | 12:17 PM

#14

vital49

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Joined: Mar 2003

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From: Purgatory

Jay...

Yes, that'* exactly what I was referring to. I've never removed the brackets, just the two bolts at either end of the bar.

May 27, 2004 | 02:09 PM

#15

Ol' Timer

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From: New Jersey - Most of Our Elected Officials Have Not Been Indicted

Quote:

Originally Posted by thaf

I can not take the wire off from the spark.

You might want to dab some Dielectric(Silcone)Grease inside of the spark plug boots. I use a Q-tip to lightly coat the boot socket. This will make it easier to remove the booty the next time you need to replace your spark plugs.

May 27, 2004 | 08:25 PM

#16

SSEBONNE4EVA

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From: CT

Bosch

The thing about a name brand Co. like Bosch who claims to have invented the 02 sensor
is if you get a failure you go to them and you are sure to get satisfaction.
Thats what I would do if any of their products fail on my Bonnies. Especially
if its prematurely.