Blower worked intermittently on 5 hit a bump on/off replaced resistor and pig tail but blower still doesn't work?? what do I need to check now?? grounding??

Well no car make model or year so limited in advice here,, it's quite basic. Hardest part is finding where it lives. Usually mounted to heater box. Firs find it and check harness make sure connector is not melted or simply making poor contact to connectors from being overheated. You may get a pass and just need to clean up connector. If the "pig tail" is in good order great if not order from parts store a replacement as well as the resistor assembly. The new pig tail will come with all white wiring so you will need to be mindful of the pin configuration when mending the new pig tail to existing harness. The resistor is usually two 5 mm Or 1/4" screws. Be sure to have ignition off while doing repair. It is recommended to disconnect the negative battery terminal first to assure you do not damage anything or anyone too.

it is advisable in future to give make model and year of what you are working on to get better detailed information.

Very common issue with those! Most likely will need a blower motor resistor at the least and possible resistor pig tail. They get hot and melt the ends causing a bad connection. If not going to dealer be sure to take bad resistor with you because there are two different styles that look similar until you go to bolt it back up. If replacing the pig tail replace one wire at a time so you do not cross wire it.

Most likely the blower motor resistor,,, always check fuse first (KISS) the blower motor resistor is mounted on the heater box (inside or out) not sure on the s-10 most likely the pig tail that plugs into the resistor is defective by melting at the connection to the resistor so after finding and checking the resistor you may need to order a repair pigtail and replace that too. Note always check the blower motor to see if it moves freely,,, a stiff or hard to turn blower motor is a good reason the resistor would fail.

blower resistor is common to burn causeing smell. check with dealer, there may be a campain on this problem. if not. replace resistor and harness (pig tail) and blower motor..

Since you are mechanically inclined, now is the opportunity for your electrical skills.
Disconnect the plug from the back of the dashboard switch, and using a VOM (Volt-Ohm-Meter) check the plug for current when you turn on the ignition key.
The hot lead should immediately work.
If the electric meter shows the same intermittent reading you are describing, it is time to fine the relay that controls the current to that switch.
It may be under the dash, or more probably under the hood. Perform the same tests with the plug to that relay.
You should find the problem either with the switch or the relay.
Oh, yes, one more thing.
I had these same problems and found rusted/corroded wires inside the plugs, look for those with a magnifying glass.
God bless your efforts,.

hello,

1.First dissable the air bag system

2. open the glove compartment, squeeze the side in to release the glove box stops and lower glove box.

3.You will see the Blower Motor Resistor directly behind the glove box.

4.There will be two pig tails (one vehicle harness, one resistor), remove pig tails, remove two screws to free resistor.

5.Replace resistor, reverse removal procedure.

Done!!

Take care..

The problem is not with the switch, it's the blower motor resistor. The resistor is usually located in duct work near the blower motor. It will have 4or 5 wires going to it and is held in place with a couple screws. These things generate heat, so they put them in duct work so the fan blows air across them to keep them cool. Sometimes the plug gets hot and melts, you should be able to buy the resitor and the plug with wires (pig tail) from an auto parts store or a dealer. The resistors are usually about $50 the pig tail is about $30.

No the fuse is good or it would not run at all. You have a defective Blower Motor Resistor Pack. It will be located behind the glove box, behind the passenger kick panel, or somewhere near the blower motor. Purchase the part so you will know what to look for.

Technical Service Bulletin TBS
05-01-38-012B
Your Blow Motor Resistor Is the problem
replace the blower motor resistor & the resistor module connector (Pig tail).
Call dealership and you can get the part give them the TSB Number

Should take about 30minute to replace not to hard.

Let me Know

most common is the blower motor resistor or "module" going out. but if you have 12volts to the resistor the motor should work on "HI" but not on any other speed. if it doesnt work at all, you might have a bad motor. just to be safe id replace both. neither one is too hard to replace. three 5/16" bolts for the motor and two 5/16" for the resistor they are both under the glove box