Spark Plug
Question:
Just went to Discount Auto this afternoon to get new plugs for my 96 XLT 2wd with the V-8. Ended up buying Bosch Platinums when I found ou the +4’s are 6 bucks each, vs. $1.79 for the regular platinums. However, since I haven’t put them in yet and could still return them for the Bosch +4’s, I wanted to ask if they are worth the extra money; i.e. will my fuel economy be better, idle smoother, quarter time 3 seconds faster? (ha ha). Any thoughts on the matter would be appreciated. -Harley
Response:
The +4s won’t do anything that the regular new plugs won’t do. The function of the plugs is to ignite the air/fuel mixture. Once they do that, they just sit there until the next time they are supposed to light the air/fuel mixture. If the regular plugs do this, then the +4s can’t do it better. Ignition is ignition, despite the advertising claims. If the regular plugs give you good service, there’s nothing the extra cost plugs can do for you other than make your wallet lighter (which, coincidentally, may improve your mileage!). – Hide quoted text — Show quoted text ->Just went to Discount Auto this afternoon to get new plugs for my 96 XLT 2wd >with the V-8. Ended up buying Bosch Platinums when I found ou the +4’s are 6 >bucks each, vs. $1.79 for the regular platinums. However, since I haven’t put >them in yet and could still return them for the Bosch +4’s, I wanted to ask if >they are worth the extra money; i.e. will my fuel economy be better, idle >smoother, quarter time 3 seconds faster? (ha ha). Any thoughts on the matter >would be appreciated. >-Harley
Response:
I have a 1990 GMC Jimmy with a 4.3 with 311,000 miles on it. 3 weeks ago I changed all the plugs and drove it about 2,000 miles when out of the blue one of the plugs came out. I put it back in and every 20 miles or so it works it way back out. I went to Auto Zone and they told me to put lock-Tite on the plug and put it back in, I’m a little leery doing this but am open to suggestions. I did look at the head and it doesn’t appear to have a crack in it either..Brian
Response:
Replace the plug and see if that fixes the problem
– Hide quoted text — Show quoted text -> I have a 1990 GMC Jimmy with a 4.3 with 311,000 miles on it. 3 weeks ago I > changed all the plugs and drove it about 2,000 miles when out of the blue > one of the plugs came out. I put it back in and every 20 miles or so it > works it way back out. I went to Auto Zone and they told me to put lock-Tite > on the plug and put it back in, I’m a little leery doing this but am open to > suggestions. I did look at the head and it doesn’t appear to have a crack in > it either..Brian
Response:
Seymore, Never put lok-tite on a spark plug, unless you want to remove the head at the next plug change. I agree with seeray. Buy a new plug and try that. Use a torque wrench and tighten it to 22 ft/lbs. This is the spec. provided by Alldata for your vehicle. Also make sure you have the correct plugs. If they are AC Delco plugs, they should be CR43TS (gap = .035"). Or Delco Rapid Fire plug # 1 (gap = .045"). GMdude
Response:
I did replace the plug just before contacting the group and so far no problems but will them you posted. Thanks for the advice….Brian
– Hide quoted text — Show quoted text -> Seymore, > Never put lok-tite on a spark plug, unless you want to remove the head > at the next plug change. I agree with seeray. Buy a new plug and try that. > Use a torque wrench and tighten it to 22 ft/lbs. This is the spec. provided > by Alldata for your vehicle. > Also make sure you have the correct plugs. If they are AC Delco plugs, > they should be CR43TS (gap = .035"). Or Delco Rapid Fire plug # 1 (gap = > .045"). > GMdude
Response:
Re: Spark Plug I did replace the plug just before contacting the group and so far no problems but will them you posted. Thanks for the advice….Brian
Seymore,
