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'94 K1500 4 low issue

ManyCamaroz

By ManyCamaroz
in Ask A GM Technician

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ManyCamaroz Enthusiast

ManyCamaroz

Posted
Posted

I test drove a dark blue regular cab Silverado K1500 truck today and it was in good shape, good interior and paint for that matter that has 226k miles on the body. The motor and tranny has about 90k on it. It seemed fine in 2wd and in 4high however when in 4 low it starts to pull and then starts slipping at about 3-5 mph.. Could this be the actuator or possibly a bigger problem? The truck is really clean, not beat up, everything works and appears to have been maintained except for the 2low issue. I can get it for $2800.

 

Thanks in advance for your help!

Doug_Scott Senior Enthusiast

Doug_Scott

Posted
Posted

When you say slipping, what do you mean? When driving in 4wd-low range, what surface are you on? Have you made sure all 4 tires are same size and brand, and that pressures are good as well? For the pressure you can see if they are way off by size of footprint on the road. Wide footprint is low pressure. All 4 tires should be close to equal.

When in 4-low it should be shifting at about 5mph, under normal throttle. You also say in you post something about 2-low issue, is this a spelling error?

ManyCamaroz Enthusiast

ManyCamaroz

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  • Author
Posted

First off, Thanks for the reply.

 

It seems fine in 2 wheel drive and in 4 wheel high range. When 4 wheel low range is selected on the manual floor shift (it lights up indicating 4 wheel is active) and starts to pull in low and then the RPM's raise up as if you were riding the clutch in a manual transmission.

00Silverado4x4 Senior Enthusiast

00Silverado4x4

Posted
Posted

What year is the truck? Did you check the tires out as stated above? 4Lo is only meant to go just so fast. 4 Lo has a ratio of 2.xx : 1 so engine has to spin faster to get up to same speeds as when the truck is in 4 Hi which is 1 : 1 ratio.

ManyCamaroz Enthusiast

ManyCamaroz

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  • Author
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What year is the truck? Did you check the tires out as stated above? 4Lo is only meant to go just so fast. 4 Lo has a ratio of 2.xx : 1 so engine has to spin faster to get up to same speeds as when the truck is in 4 Hi which is 1 : 1 ratio.

 

it's a '94 and am just looking to buy this to kick around in around town and haul things to the landfill, recycling center, pine straw, mulch and etc. so I dont have to use my utility trailer and 2010 Escalade as a errand truck. I haven't specificaly checked the tire pressures but just looking at them they should be sufficient. I've owned a '81 K5 Blazer, '92 Yukon and a '99 Yukon and am familiar with how the low range operates. When its in low, it's in low.

ManyCamaroz Enthusiast

ManyCamaroz

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I'd look up the value of the truck, it sounds a bit high on price for a truck of that year.

A lot depends on where you live. If it will run and is drivable, basically no matter the condition of the truck they sell for $1,500 to $2500 around here.A decent one around here averages about $3,500-$4,500. NADA shows about $3,500 low retail. This one has good paint, good interior, all service records and a Leer Signature series camper top painted to match the truck, but it will be coming off and going on Craigslist.

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