Why would my rpms run real high only when driveing

30

Asked by Jun 18, 2015 at 12:51 PM about the 1999 Chevrolet Silverado 1500

Question type: Maintenance & Repair

No matter what gear it's in rpms
staying right around 5000-6000

13 Answers

31,595

Transmission / clutch slipping. If it is a 4X4 maybe it is low range.

1 out of 1 people think this is helpful.
30

It's an automatic trans

78,375

With those RPM's it won't last long. Does it sound like it is revving that high or is the tach just stuck? Does it idle normally?

2 out of 2 people think this is helpful.
30

It idles fine and seems to be shifting fine just screams when u get on gas

1 out of 1 people think this is helpful.
143,365

Bob is right, but does it sound like it's really running that fast..or maybe tachometer is faulty? I looked at a forum and they say 6k is red-line. Going to red-line to shift is fine but cruising with it running that fast is not good

143,365

I type so slow your guy's posts were not there I was off looking for what red-line is on that truck

30

It definitely not a faulty tach it's running high as I said it automatic trans not sure if that makes a difference

31,595

Is it a 4 wheel drive? If so it may be stuck in low range.

30

It's not 4x4 beginning to think trans is just about shot not sure how one can go so quick one day running fine next day bam lol

16,255

Please don't run your engine like that long. Sounds like the trans is toast. It could be stuck in 1st gear which could indicate a tps or vss problem

1 out of 1 people think this is helpful.
30

Ya I thought maybe tps too I'm not sure what vss stands for but at this point think best thing to do is let my mechanic take a look

31,595

VSS=Vehicle Speed Sensor

30

Thanks bob and rest u guys ur suggestions gave some good place to start looking but nothing I checked or changed worked I'm good at fixing things but am no mechanic

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