Idle RPM
#1
#2
#4
#5
How do you mean first gear is 1500-2000? When you put the truck in first gear (drive), RPMs should not change from idle. When you hit the gas is when the RPMs should increase. And when it shifts out of first gear is entirely dependent on how much gas you give it. If you floor it, yes it won't shift out of gear until high in the rev range. If you accelerate lazily then it'll shift sooner.
Did you disconnect the battery? The PCM has a learn period and idle RPM might be higher for a little while. Either way there is nothing you need to worry about.
Did you disconnect the battery? The PCM has a learn period and idle RPM might be higher for a little while. Either way there is nothing you need to worry about.
#6
Thanks. Yes the battery was disconnected. I meant that the idle rpm in park was higher and in observing the rpms in my normal driving they are higher than before the plug change. For instance I know that driving a particular stretch of road the rpms were always 1500, now are 2000; I realize the amount of accelerator applied will affect the rpms, it's just that they seem higher now. I'll see what happens after a few weeks but thanks for the "no need to worry."
#7
1993 Dodge Dakota LE, 5.2L
I oft wondered about idle RPM too. I recently changed out my crankshaft and camshaft sensors and it seemed my idle dropped from about 700 to 400. But then after checking it several more times I cannot tell what the idle is. I see it at 400, 500, 600, 700, 800 after it's warmed up. All over the place. Seems like it prefers 500ish for the most part but it does fluctuate. But the dang thing purrs like a kitten so I leave well enough alone.
I oft wondered about idle RPM too. I recently changed out my crankshaft and camshaft sensors and it seemed my idle dropped from about 700 to 400. But then after checking it several more times I cannot tell what the idle is. I see it at 400, 500, 600, 700, 800 after it's warmed up. All over the place. Seems like it prefers 500ish for the most part but it does fluctuate. But the dang thing purrs like a kitten so I leave well enough alone.