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Any body has this problem I have to drive around 3 to 4 miles before my engine temperature gage is showing that it is operating at the normal engine temp?Anyway I just changed my spark plugs at 40k with NGK BKR5E1X-11 P/N 5464. The ones that came out where the factory NGK 1FR5A11 are they different heat ranges?Now the car engine temp gage show that it reaches normal engine temp after driving less then 1 mile, the outside temp does not matter is probably around 80 degrees here.Or did I hit some thing when changing the spark plug? Any one knows where the engine temp sensor it located?

the engine temp aka the needle for my engine takes some min to warm up to half. new plugs may of helped the engine heat up sooner if they are clean and fire properly. aka a better sparkif your talking about the outside temp number in the lcd read out then that just takes temp in the grill.

The spark plugs shouldn't make a difference.I don't understand what you are asking.You are saying that it gets hot quicker now?

Quote, originally posted by whitevibe04 »Any body has this problem I have to drive around 3 to 4 miles before my engine temperature gage is showing that it is operating at the normal engine temp?Anyway I just changed my spark plugs at 40k with NGK BKR5E1X-11 P/N 5464. The ones that came out where the factory NGK 1FR5A11 are they different heat ranges?Now the car engine temp gage show that it reaches normal engine temp after driving less then 1 mile, the outside temp does not matter is probably around 80 degrees here.Or did I hit some thing when changing the spark plug? Any one knows where the engine temp sensor it located?You tell us, if the plugs you bought are of a different heat range... you bought'em...lol Did you just grab a set off the shelf and say "oh, these look like they'll fit" ?? As far as the motor warming quicker, that's a strange one, i can't imagine plugs changing anything, i mean fire is fire... As stated above, you could be burning fuel better based on having new plugs, but figureing out weather or not you have the proper heat range is criticle....I just crossed the PN at NGK to these http://www.ngksparkplugs.com/p...x.aspSo you replaced them with Iridum plugs... what did you spend on them? Should be ok, i'm not a fan of iridum, i like the regular old coppers myself (v-power in NGK)The engine temp sensor would be screwed into the block somewhere, so who knows, you could have bumped a connection and made it better, that's all i can think of...

Yes it is the engine temp aka the needle for my engine. It moves up quicker to the half way point on the gage.No the guy with the GED behind the counter gave them to me. Just wanted to make sure that there where the right one, which they are.That website was very useful and informative thanks: http://www.ngksparkplugs.com/p...x.aspI paid 6.99 each at Kragen auto parts. Did not have time to shop around.

mine gets to half within a couple min...as long as it stays at half aka normal op temp I wouldnt be worried..you should be happy! haha the yota engin runs WAY better when at that temp.

The temperature range for spark plugs has nothing to do with having a hotter or cooler engine. It has to do with spark heat. You get 'cooler' plugs for boosted engines to help against pre-detonation. You sure you have enough coolant and oil? Otherwise, the warmer air temperatures do help warm the engine up faster.

The spark plug heat range has nothing to do with the spark heat. It's the temp of the porcelain in the end of the plug. The porcelain sticks out farther from the threads on a hot plug thus absorbing and retaining more combustion heat vs the porcelain being back inside the threads on a cold plug. In other words there is more porcelin exposed to combustion heat on a hot plug and less porcelin exposed to combustion heat on a cold plug. More exposure equals hotter tip, not hotter spark, less exposure equals colder tip. Generally speaking, you want to run as cold a plug as you can get away with. Too cold, deposits will form and the plug will foul out, too hot, pre-ignition/detonation will occur. As already mentioned, spark plugs will have nothing to do with coolant temp or how quickly/slowly it heats up.

that engine temp sensor is checking the oil temp, so most likly u parked ur car in the sun and it was 30 degrees warmer already thus it took less time to warm ur car up. on my last car during the winter it took "forever" aka 15 minutes of idling before it was warmed up, in the summer its about 3 minutes of driving.

The temp gauge with the needle is the coolant/water temp, not oil temp gauge. There is not a oil temp gauge, only an oil pressure light.

Quote, originally posted by djb383 »The temp gauge with the needle is the coolant/water temp, not oil temp gauge. There is not a oil temp gauge, only an oil pressure light. True story.Sorry Batman

Thanks, Dude.