20 Most Recent 1994 Chevrolet Astro Questions & Answers

throttle position sensor is bad

1994 Chevrolet... | Answered on Jul 14, 2019

your new distributor could be 180 degrees out from when you put it in just a thought !!

1994 Chevrolet... | Answered on Mar 03, 2019

Here is a link to a similar tool I use at my shop. Sometimes removing a exhaust hanger can get you a little more room.
Amazon com Oxygen Sensor Socket Remover Tool Set 3 Piece Universal o2...

1994 Chevrolet... | Answered on Aug 26, 2018

indicates failing engine mounts or if rear wheel drive( no vehicle mentioned ) failing diff suspension rubbers

1994 Chevrolet... | Answered on Feb 10, 2018

Fuel tank vent valve clogged or stuck closed .

1994 Chevrolet... | Answered on Nov 27, 2017

Well you fix it yourself then. You will need axle stands, an ebay diff and a weekend. I did this job on a Toyota Estima 4x4. Get stuck in there :-)

1994 Chevrolet... | Answered on Oct 22, 2017

For the load side of relay, comes from fog lamp fuse. Voltage for control side of relay comes from fog lamp switch which gets voltage from headlamp switch.
fog lamp fuse-j14izskjhmuin2fdgknpgms3-5-0.jpg

1994 Chevrolet... | Answered on Apr 07, 2017

Under throttle body. Take a can of carb cleaner(make sure you don't have plug wires breaking down) spray under throttle body if it changes the way the engine runs you found it. Egr and pcv are other less likely. Should be getting a lean code if you got a vacuum leak

1994 Chevrolet... | Answered on Dec 28, 2016

With engine running, put a volt meter accross battery terminals. If it reads LESS than 13 volts, your alternator is bad.

1994 Chevrolet... | Answered on Sep 01, 2016

this generation of gm vehicles is easy to troubleshoot. the engine needs 3 things to run: compression, fuel, and spark. since you mention fire, i assume you have no spark.

disconnect any random spark plug wire and connect the end to a hei spark tester. crank engine and observe for spark. if you have no spark, disconnect the center terminal of the distributor cap and use the hei tester in the same manner. spark means cap and rotor bad or bad plug wireset. no spark means make more checks.

check for battery voltage and good ground on distributor. check for open or shorted ignition module or ignition coil windings. if power and ground is present and ignition coil tests ok, check for ignition pulses at coil primary. if you have no ignition pulses feeding the coil, change the distributor.

with that generation of vehicle, the ignition system will operate without help from the computer. don't even troubleshoot the guts of the distributor, if you change the cap, rotor, and anything else, it will be the same price as a remanufactured distributor, and might not fix the problem. if you troubleshoot a low volrage related issue (no pulses, shorted or open circuit, unstable timing, etc), change the whole thing.

1994 Chevrolet... | Answered on Jul 29, 2016

This is usually the injector pump in the intake manifold.

1994 Chevrolet... | Answered on Sep 16, 2015

Check the circuit for power and ground

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/david_2f6e03df6c124197

1994 Chevrolet... | Answered on Mar 02, 2015

I would say it could. Especially for in town driving. It would help with the "searching for the right gear" that sometimes occurs at less than highway/open road speeds.

Also for any towing or heavier loads I would recommend NOT using overdrive.

For open road/highway I would use overdrive to get better MPGs.

Hope this helps.

1994 Chevrolet... | Answered on Feb 21, 2015

Code Reader or Professional Scan Tool ?

Why was the distributor changed?
What started all the parts replacement?

Was any testing-- of anything done,BEFORE parts went in?

You have no vehicle problem,details,symptoms or what
problem your having an issue with

TPS Sensor---does it get adjusted ?
Exhaust Converter -how old & blocked?
Egr --issue?
Vacuum Leaks?
Worn Timing Chain?
Oxygen Sensor in control of fuel (Closed Loop)
Engine Temp--is what when hot?

1994 Chevrolet... | Answered on Nov 23, 2014

you either have bad brake pads or the bolts are loose that hold the front steering suspension on.

1994 Chevrolet... | Answered on Nov 12, 2014


1994 Chevrolet... | Answered on Oct 17, 2014

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