GMC Sonoma

Depending on the type of stereo is in the truck, I have a AM FM Stereo, CD, Tape system. At the lower left hand corner of the unit there is two little buttons one labled with an H the other with an M. Pressing either one of them for more than 5 seconds will start the time adjust sequence.

It's located right on the evaporator

Everything

1342

I assume you wish to reset your ECU (computer). It really depends on the year. On my 97 626: Remove negative battery cable, depress brakes for 10-15 seconds(to ensure power is completely depleted). Reconnect Battery. This will reset your computer. you may need to put a code into a factory installed radio (to make the radio work again). Please note: Your ECU needs to "re-learn" how to run your engine, your car may run rough for awhile as the ECU "learns" how to operate your engine. It may take 40 miles or so, its a good idea to do both city and highway driving to make sure the ECU sets itself properly.

yes............!

A William Sonoma outlet can be found by going online to the official William Sonoma website. You can also contact an agent that will be happy to give you the address.

After opening the hood, look down the right side of the radiator. (the side with the radiator cap) The drain plug is at the bottom facing the rear of the vehicle. No need to remove it, only loosen.

It is my understanding that the bell housing bolt pattern is not the same between the 4.3 and the 2.8.

sorry but you have to replace the whole blinker part, be prepared to spend a little time. good news you want have to remove the steering wheel.

No

Set aside a full day for this one and if your lucky, mabey less. first drain all anti freeze.

then look under hood on passenger side for two coolant hoses passing through fire wall- too under your dash. those two brass pipes are part of the core so, remove hoses, have a rag handy more coolant will come out. then dissconnect your dash, and some panneling so you can access the core! I think there were only a few screws holding core in place. I pulled dash out only half waf and was able to make it work.

I would recommend a new radiator cap also.

1-5-3-6-2-4

if you need to ask how to change the brake pads on a vehical. Please do not touch them. Cause nobody wants you slamming into the back of there car cause you f*@ked up!

17mm (works for a 1998)

I assume you are suggesting swapping a 4.3 liter Vortec engine into a '91 Sonoma that has a 4.3 liter engine. I believe this would be a major project. The '91 4.3 liter has a TBI fuel injection system and the Vortec uses a different, higher pressure system with injectors at each cylinder. I think you would need to change the fuel pump in the fuel tank, computer, harnesses etc. The Vortec also uses a mass air flow sensor so the air induction system would also need to be changed. Not compleley sure on all the changes necessary but I do believe it would be complicated. I just finished swapping a '90 4.3 into a '94 Sonoma. Both are TBI injected. One thing to watch -- the OIL PAN. The oil pan on the four wheel dirve version has a shorter, deeper sump to fit around the front drive axle. The 4WD version will probably work on a 2WD but I would check it out. Good Luck, Jim

normally what i do it is to have some one hold the mirror very tightly while the button assembly is sitting firm against a hard surface (like the edge of the table) then i take a flat head screwdriver and a hammer - put the tip of the screwdriver on the button and just knock it out with the hammer - works like a champ for this redneck p.s. make sure you glue the correct side of the button and yes - use the primer first.

It should last 100,000 miles but that all depends on how the vehicle was driven. If it is worn out, it is worn out, no matter what the mileage.

There are two types of doors on an auto heater/A/C system--mode doors and blend doors. The mode doors change the direction of the flow of air from the floor to the vents to the defrost. The blend doors change the temperature. The doors in your car are moved by vacuum motors. Either you have a leak in the vacuum line or the vacuum motor is bad. Most often it's a leaking vacuum line or switch. Check those out first.

Rick

I'm a retired ASE Master/L-1 Technician. I still keep current with the latest automotive technology. Visit my blog for cool articles and TSB's: http://free-auto-repair-advice.blogspot.com

The timeing is ajusted by the computer there are two coolent temp sinsers one goes to the dash and the other goes to the computer depending on the temp outside the computer ajust for cold or hot starts so the only ajustment is base timeing this is done by bring the number one cylender to top dead cinter and then puttin a timeing lite on the plug wire and checking the degree the specks for proper ajustment are on the fan shrout sticker

There is a door behind the dash that changes cold and hot air flows. The door is probable stuck or the control circuit has failed causing the hot air to blow on cold.

flashers always in one of 2 places, under glove box on pass side or in loom under stearing wheel close to fuse panel

On my Sonoma it is under the lower dash panel, just to the left of the cigarette lighter. To get to it you must remove the ashtray. Then remove screws holding the plastic panel that is below the dashboard. You will see two round "can " shaped flasher units. The one on the right is for the signal lights. The one on the left is for the emergency flashers.

10/11/2009 (added from experience)

This is the best and correct answer you will find. 1 hex nut under ashtry and 2 torx to left of that. No need to completely remove the lower dash panel you took the screws out of. Just bend it down a little to get you hand in. You will see the 2 flashers.

My turn signals work again!!

The approximate driving time and mileage information -

Between: San Francisco, CA

and: Sonoma Valley, CA

Driving miles: 39

Driving time: 1 hr

- is based on traveling non-stop in good driving conditions. Driving time does not take into consideration conditions which may extend travel time such as weather, road work, border crossings, and rush hour traffic in urban areas. Mileage denotes actual road miles covered as opposed to Point A to Point B linear distances on a map.

There is usually a tag on the axel with the info you need. If all else fails call your local GM dealer or 4x4 shop.