Questions & Answers for: GMC Sierra transmission shifting

my 1994 GMC Sierra's transmission doesn't shift into overdrive every time hello: i have a 1994 GMC SIerra 1/2 ton 2 wd, the first two gears shift find but when you get up  to about 55 or 60 mph, ...

transmission shifting hard after a iam driving for a while after it set for a while it will shift normal and than start again shifting hard again and if iam pulling something it will blow transmission

it just stopped shifting. Is there an electronic relay or switch that may be broken? It's a shift solenoid inside the transmission that probably went bad. Sorry. It has to go to the transmission shop

...kit available while i have oil pan off?? No , shft kits have to be install into the 'guts' of the transmission .If you pull the transmission out ,you can take to a Qualified rebuiler to install a ...

...shifting solenoids in the transmission that tell the it when to shift. These are known to go bad in 4L60E transmissions. A quick check for a simple possibility is the plug going to the transmission. ...

...first gear shifts hard also from park to drive others gears are smooth i have overdrive I changed transmission mount oil level ok The gear shift lever indicators tell you what gear you have an ...

Automatic Transmission shifts hard from first to second gear. Is it the shift solenoid? Wondering if the problem is in the valve body. The rest of the gears shift fine. Put some transmission ...

...transmission quits shifting This problem has been a pain to diagnose but when the gauges stop working the transmission shifts into overdrive and will not shift when the gauges start working again the ...

transmission wont shift my transmission wont go past second gear its a 98 gmc sierra I had this same condition with mine while it was under the factory warranty. The dealer replaced the 3-4 shift ...

What can I do to fix my transmission. It is slow to shift into reverse. I so far has shifted but is scarey I presume this is an automatic transmission. If so it is likely your transmission fluid is ...