Top 10 1993 GMC Sierra K1500 Questions & Answers

here is a great site randy sell great parts at a great price and he is a pro.
check his site and you will find even more info than you need randys
and what emissionwiz said is 100% correct i have had people bring me their trucks with rear ends that they tried to set up just by looking at tooth contact and they have ruined a new set.
follow randys instruction with the right tools and you wonnt have a problem.
good luck paul

I will try and clear up any confusion about the different model designations.The trans was first introduced as the Turbo Hydramatic 700 r 4.Later in the evolution of that family,it had improvements made on it by the factory engineers,and they redesignated it the 4L60 model.The 700/4L60 uses a throttle valve cable as a mechanical indication of the throttle position....to the trans.The TV cable regulates mainline hydraulic pressure inside the transmission.This model also uses a governor as a road speed mechanism.It is responsible for the TIMING of the upshifts,and is responsible for the trans being in first (low) gear from a standing start.In 1993,the 4L60E was introduced to the lineup.Same trans as the 700/4L60,but now it is totally electronic,and totally controlled by the PCM (Powertrain Control Module) based on electrical inputs/outputs from the trans,throttle position sensor,road speed,etc.The engineers took the 700/4L60 and did away with the governor and TV cable,made it totally electronic.Early 700's had a mechanically driven speedometer,while the later 4L60's and E's had an electronic speedometer.1993 was a transition year.I have seen both,the 4L60 and the 4L60E in 1993 model trucks,it depends on the month of the manufacture of the vehicle.Your truck could have either,or.The way to visually identify the difference is........on the driver side,the 700/4L60 trans case will have a round,black,governor cover,about 3 or 4 inches in diameter.The 4L60E case does not.The 700/4L60 also has the TV cable mounted on the passenger side of the trans case,and it routes up to the throttle body/gas pedal/accelerator linkage.The 4L60E does not.Recently,the 4L65E and 4L70E versions have been put into production.Based on your description of the malfunction symptoms,i would be inclined to say yours is probably the 4L60E version,because the speedometer malfunction occuring at exactly the same time as the shift malfunction.On a 700/4L60,the speedo malfunction would have no affect on the upshifts,the trans would operate normally.On the 4L60E,a speedo malfunction would likely cause no upshifts.You should still visually verify by the governor cover,or lack thereof,on the side of the trans case.It could just be a speed sensor malfunction if it has the "E" model.If so,it would have set a trouble code which can be accessed with a scan tool or a code reader.Hope this eliminates any confusion.Good luck!!

It sounds like your torque converter or the pump is broken.

The high pressure and low pressure hoses are different sizes at the gear box. And the low pressure /return hose is usually rubber with a clamp at the back off the pump.

your ecm or engine control modual, usually located behinde the glove box.. it fontroles the coil and distrubator funonctions

You can set the timing but the ecm, engine control module will reset it back to specs. So it useless to try. Good luck dont forget to rate

The relay and fuse is located under the hood on the firewall near battery, also theres a fuse in inside fuse box for injectors, its labeled inj, check that one also, these trucks usauly ene up with bad fuel pumps, test for power at the fuelpump, hope this helps.

basic tune up... plugs, wires, cap, rotor theres a start

no it does not

check shift linkage