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You are watching: 1999 toyota corolla spark plug gap


Hey,So i just acquired 4 NGK BKR5EKB-11 and also heard the you go NOT have to space these (considering they are the recommended spark plug because that corolla 99\"s follow to the toyota certified mechanic). Is this true?I simply bought part Bosch Platinum +4\"s and also trust me once i say not to acquire these. Greatest waste of my money ever. Castle were awful from the get-go, i went from 36mpg down to 27mpg, and also the performance of my \"rolla to be severely downgraded. I simply popped this suckers in and also i can currently feel a substantial difference. If someone deserve to let me understand if they require gapping despite that\"d it is in great. Thanks!
Hey,So ns just got 4 NGK BKR5EKB-11 and heard that you go NOT have actually to gap these (considering they space the encourage spark plug because that corolla 99\"s according to the toyota certified mechanic). Is this true?I just bought part Bosch Platinum +4\"s and trust me when i say not to gain these. Greatest waste of mine money ever. Castle were terrible from the get-go, i went from 36mpg down to 27mpg, and the power of mine \"rolla was severely downgraded. I just popped this suckers in and also i can already feel a vast difference. If someone deserve to let me know if they need gapping though that\"d it is in great. Thanks!
they execute not need gapping. The -11 in ~ the end of the plug code represents 1.1mm or 0.044 in. I m sorry is right about where friend would gap plugs to because that this engine anyways.
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If the came with those plastic coverings top top the finish of the plugs, that\"s to safeguard the head that the plug so the pre-gap doesn\"t gain messed up. So in that instance they have to be pre gapped.

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Ah, now I uncover this thread. :headbang: i did buy plugs native the dealer for my 99 Corolla and then behavior to gap them myself. For this reason this to be a mistake, and I have to buy a brand-new set that plugs native the dealer and also replace them? my car\"s performance does it seems to be ~ a little bit rougher, and I didn\"t quite understand if it to be the plugs or the transmission.Well, I found this thread prior to posting a new one at the very least . . .Ron
I bought the NGK iridium plugs for my 01\" LE and gapped them to spec because they differed in gap when I confirm them before installing. I typical 37mpg and also get together high together 40mpg on much longer trips.About 2 weeks before that, right after I acquired the car, i installed regular NGK v-powers together I didn\"t realize the it referred to as for Iridiums. It didn\"t seem come drive any kind of different, gas mileage to be still in the higher 30\"s top top my largely highway commute. I simply stumbled throughout the exactly specs and also decided to readjust them. Gapping the plugs surely won\"t hurt, if something it will certainly ensure they space gapped effectively in instance they weren\"t from the manufacturer.
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