20 Most Recent 1987 Chevrolet G30 Questions & Answers

On a 1987 you should still be able to use the factory gauges or lights. Just use the original harness and remove the part that goes to the injectors. I would also suggest running a mechanical fuel pump with the return line to the tank. If you end up going with an electric pump, even a small one will usually put out over 15 PSI, you do not want more that 3-5 at your needle and seat.

Normally the low side is the line from the dryer or round unit. Most recharge unit will only fit on the low side now days unless you are using actual gages to fill with. Hope this helps.

You might want to do a tail pipe pressure test to be sure your exhaust system is not partly plugged. I am assuming that you pulled the 02 sensor from the exhaust pipes or headers. The headers sound as if they have been on the truck for awhile and are not new to the unit so then I would not think they are causing the problem. But I tell you for sure the plugged exhaust system will.

Is the check engine light on, does it have fuel injectors, and have you checked fuel pressure?

Not too small if you got the correct part number& put the two belts together to check lengthHave to pull loosen the a/c compressor to get it onNot uncommon to be given the wrong belt,as there are many applicationsYou always write down the old number or take theold belt with you, to the parts store

The auto parts stores sell books with the diagrams in the back. Also your local library and Ebay.Autozone has info for some models on their website.

Hope this helps you??

Try the solution at the following URL:

 

http://www.ehow.com/how_5235160_diagnose-failed-emission-test.html

check the connection to the headlamp feed wire to the fuse block. It maybe loose or corroded. I do happen alot. Wiggle the wires and see which works quite often

You might find something here

http://www.2carpros.com/car_repair_information/index.htm

You could have some bad control arm bushings or inner or outer tie rod ends.

Hydro Carbons are usally from an engine missfire. It may be that it is such a sligh miss that you cannot feel it. What is your timing set at? I would try setting it at 2* advanced and see what that does for you.

buy manual, check and reset tps, you will need cheap ohm meter

the side that says "front" faces the radiator.

You should not have to pull the motor to replace any of the freeze plugs, except the 2 on back of engine block witch requires engine removel or trans. removel. Depending on witch one thats leaking. There are 3 on each side, and 2 on the rear of engine, most common one to leak is the one above the starter, witch requires starter removel, there is one in the middle thats you have to jack up engine to remove engine mount to get too. There all located below exhaust manafold on each side. They are a bear to chg. but can be done without engine removel.

Tail light bulbs can blow fuses when they fail. Remove the bulbs and test them with a meter, or with a piece of wire to the battery terminals. Check the grounds and connectors that are near the rear lights. Check underneath for cut or broken wires. The dash lights are more of a puzzle. A corroded or loose connector is the most likely. Older vehicles do have small capless bulbs in the dash. ..

Go to gm.com/support. Likely you won't find it. Motor homes are a special breed and even an RV dealer would have trouble and end up doing it in house.

It's most likely a wheel speed sensor at fault. Check the connectors and wires behind each wheel. Sometimes corrosion builds up in the connectors or sometimes wires break...and sometimes the sensors just plain fail. Your brakes will work just fine but you've prolly lost ABS function. If you can lock up your brakes, ABS is disabled until the signal is restored.