Why would my rpms run real high only when driveing

220

Asked by Jeremy 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

16 Answers

159,705

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

2 people found this helpful.
220

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

6 people found this helpful.

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

2 people found this helpful.

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

1 people found this helpful.
220

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

7 people found this helpful.
159,705

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

1 people found this helpful.
220

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

1 people found this helpful.
61,405

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

2 people found this helpful.
220

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

1 people found this helpful.
220

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

1 people found this helpful.
10

i am having the same issue today 4/16/18... this was helpful info..

1 people found this helpful.
20

Mine started doing this today. Checked trans oil it was barely low. It did it for awhile longer after I left the store where I purchased the transmission fluid. Then it started running normal but I am thinking maybe it's a sensor also

2 people found this helpful.

I have an 06 chevy 2500 hd crew cab and the rpms are running under 1500 when going 50 mph or lower

10

I'm having that problem but my truck runs fine except for the rpm sticking on 6 rpm it goes down when I turn off and on the truck repeatedly, any suggestions

1 people found this helpful.

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