Top 20 1986 GMC Caballero Questions & Answers

well you will have to go to the dealer.

dissconect battery call dealer for password

nice choice of rod, but the v 6, junk , need to run untill 454,350, 396 arrive? cool, ok. only need dist vac to accelerater vac port pass side of carb,manifold vac port to brake boost lose rest.cap off.<check timing> racing trick, vac guage max vac back off 2 lbs of vac perfect timing for race. set wreckers up that way for clean burn and better milage. [email protected] or classic roadside services .com e-mail rick v-6 231 229 vega/monza

You can get one of those hand pump sifen hose or the other option is to drop the tranny pan.

the 4.3 is .035,
the 5.0 is .045

On a lot of chevy you need to axess the plugs from inside the wheel wells . The plugs are on the side of the block look for the wires that will lead you to the plugs . But you likely need to remove the front tires to be able to get the angel to get a socket wrench on the plugs to remove them . 4.3 engine if this what you have you need to do this but many other chevy engines are the same Good luck just look at it

Hi and welcome to FixYa!

Rearding the electrical in and outs of the car I strongly suggest that you get a copy of Haynes Manual on any auto parts store or bookstore. This will guide you fully not even on electrical but the in and outs of the car for only atleast $16. Not bad for an investment specially if this car is for keeps.

Hope this helps and thank you for using FixYa! Have a good one!

hello howard. There is a fuse panel to the left of the steering column behind a removable panel. Begin by checking and changing the fuse to the heater. The other posssible problem is the heater relay which is a plug in located under the dash, to the right of the steering column. IF the relay is bad the fan will not come on. IF you check and/or change each of these items and your heater still doesn't work then you probably will have to go to a repair shop. Joe

thanks for choosing fixya!

code 44 set on pre 1995 gm vehicles is a o2 sensor reading lean or bias to .2 volts or less. it could be the o2 sensor, it could be a vacuum leak making the exhaust have too much oxygen thus making the o2 sensor to read lean or put out a lean reading. If the o2 sensor is old 75k-100k it's probably time for a new one anyway. an exhaust leak near (upstream) to the o2 sensor can pull in air even though the exhaust is leaking out and fool the o2 sensor with the added oxygen also. you could also have a fuel delivery problem creating a true lean condition. there are ways a tech can test an o2 sensor to see if it's the sensor or a mechanical problem causing the code.

Hi!!The only places where you can get the roof cloth is the dealer and an Upholstery Shop/Store. If your roof cloth is only loose and not ripped, you can remove the trim around the roof of the car or if it is only a small part that is coming loose and apply fabric spray adhesive in between the roof and the cloth to make it stick together. It usually works pretty good if the roof padding is not too dry that disintegrates when you touch it. If that's the case, you need to install new roof padding found at the upholstery shop/store.
Good luck!!

what year? what engine? what model? Usually on gm vehicles with distributors that are electronic (after points) there is a ring / cap on the top surrounding the coil with this info embossed onto it.

Firing order of a v8 chevy prior to Generation III engines is 1,8,4,3,6,5,7,2.

Hope this helps.

Sorry there is no free repair manual on the net for the Caballero. But I did find this one on the net it is the cheapest on out there.

http://www.rockauto.com/catalog/raframecatalog.php?carcode=1148240&parttype=10335&a=FRc1148240k314812-5147342

Good Luck

Hi. This is a hard one it depends on where it broke,can you cut the housing to get to cable core and pull with pleirs, if it snapped at latch then you will need to remove the grill or go from the bottom and try to hit the release the same wat the cable did,sometime if you grab the cable near the latch and pull hard it will open, good luck.

Double check to make sure the plug wires are on tight and in the right order. Fire it up after dark and look for arcing at the wires. They may need to be replaced.
I never was satisfied with the way other plugs worked in my GM's. I stuck with AC/Delco plugs and always had good service and performance. I even put them in a 409 that idled at 1500RPM. They would take everything it would ask for. Just a personal prefence but They always worked for me. Hope this helps.

You can download a repair manual here (8.51 MB):- http://vectra-c.swi.hu/VectraManual.pdf Hope this helps.

P1860 = TCC PWM Solenoid Circuit Electrical P0740 = Torque Converter Clutch Circuit/Open and P0785 = Shift Timing Solenoid "A" Maybe spurious codes, I can't tell.

Good place to get a vacuum gauge hooked up and identify problems using that tool. Without the gauge, check your exhaust and see how much if passing through the converter. You can do this by testing the temperature of the exhaust before and after the converter making sure the converter/exhaust isn't restricted. As the vehicle warms up a bad converter can cause the symptoms you are describing.

The C0292 code in your 2004 GMC Yukon Denali XL indicates a communication issue between the Powertrain Control Module (PCM) and the Electronic Brake Control Module (EBCM). Here are some steps to diagnose and potentially fix the problem: Check Ground Connections: Inspect the ground connections related to the PCM and EBCM. Follow the ECM ground and ABS module ground. Check the ground on the firewall (driver's side) and the frame rail under the driver's seat. Also, verify the engine ground on the driver's side. Inspect Wiring and Connectors: Visually examine the wiring harness and connectors associated with the EBCM. Look for any signs of damage, such as broken wires or corroded pins. Ensure that the connector pins are not bent or pushed out. Pay attention to any loose or poor electrical connections. Consider the Tune: If you've recently modified the vehicle's tuning, consider reverting to a different tune. Sometimes, a specific tune can cause communication issues. If you suspect the tune, contact the tuner for further guidance1. Professional Diagnosis: If the above steps don't resolve the issue, it's advisable to seek professional help. A qualified mechanic can perform a thorough diagnosis using specialized tools. Keep in mind that diagnostic costs typically range from $75 to $150 per hour.

The fuel filter for the 2009 Acadia is built into the fuel pump. To replace it, the pump will have to be replaced.

Fuel injectors are typically driven directly by power transistors in the engine computer. Relays are just not fast enough to provide the fine timing control needed. There might be an individual fuse for each injector soldered to the computer board, but I haven't ever looked at one for your model, and I've never seen injectors individually fused. Before chasing that, verify that the electrical resistance of the injector coil is the same as the other injectors. The typical resistance is between 100 and 1000 Ohms. If the coil resistance differs by more than 10%, replace the injector coil (it may be easier to remove the coil from a new injector and switch it with the old one than to pull the entire injector out and replace it, if not, change the injector). Shorts in the coil that lower the resistance are sometimes a problem. Also check the injector cable for continuity. An easy way is with an ohmmeter that can read at least 20 Megohms. First, check the resistance between the terminals on a good cable. You should read a very high resistance - this is the leakage through the transistor and any protective components, and is some number between 5 and 20 megohms. The exact number doesn't matter, as long as you see something and it is not a short circuit (less than 1 Ohm). This verifies that the test will work (if it reads over-range, either your probe tips can't reach the contacts in the connector, or the test is otherwise not valid). Next, repeat on injector 1. If it reads open circuit (over-range), check the injector cable (note: an open fuse will give the same result as a broken wire).