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You are in the GMC Safari & Chevy Astro
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GMC Safari, Chevrolet Astro, Van
#1328 of 1973 1990 Chevy Astro won't run
May 01, 2006 (7:52 pm)
I have a 1990 Astro 4.3 Litre.....it was running well enough until someone tried to steal it a month ago..since then, I put in a brand new battery and starter. Recently, the wife was running it pretty low on gas, and it was running in damp weather a little sputtery......when it was warmer, and it was relatively dry, it started running much better. 1 week ago, I started her up, drove her to the store, but when I came out,turned her over and started driving, she died like it was out of gas.....it started up again, died after a few seconds, and least 3 times in a row, and finally I got it started enough to get it home. After that, it would only start and run for a few seconds then quietly die like it was out of gfas...I listened for the fuel pump, couldn't hear it several times, assumed it was the culprit, and replace it, along with the fuel filter.....the next morning, when I tried to start it? SAME PROBLEM.....starts, dies, starts, dies.....I put in about 10-15 bucks worth of gas, and a neighbor suggested it may not be enough gas in there....I am no mechanic, but hardly think this is it...
I pulled off a couple of the wires, left them at the edge of the plugs and turned it over...spark...so I eliminated the ignition module..today, I replaced the fuel pump relay JUST to be sure....and the batteries dead! Strange...Is this a coincidence, or is the true problem, also killing the battery?
So to date, New Battery, New Starter, New Fuel Pump, New Fuel Pump Relay, New Fuel Filter......what else would prevent the vehicle from turning over and running?The check engine light does not come on, but 4 months ago, when we travelled on the highway over 50 miles an hour the check engine light was coming, on when we were driving at under 30, it turned off....
I am attempting to post all the information I can think of to cover all possibilities....I did not consider replacing the injectors, since this would suggest that all injectors failed at the same time....I don't think it is coil related, wires/plug related, since it was in fact turning over and running....just not continuing to run long enough to travel somewhere....any help would be appreciated...tomorrow, I will be checking lines to see if I have a broken line somewhere....but I doubt this, since there's no gas...not a drop..on the clean concrete where it is parked...suggestions? Possibilities I didn't cover?
#1329 of 1973 Re: 1990 Chevy Astro won't run [dreamcatcher2]
May 02, 2006 (8:19 am)
I don't know if this helps, on a 94 S-10 blazer with the same engine, I had a low oil pressure switch that when it went bad would not allow the engine to run. I assume the 90 astro with 4.3 has a similar switch. Have you checked that? Since the van would run for a minute and then die. You may not have an oil pressure problem but, the switch may have gone bad.
#1330 of 1973 Re: Astro AWD front axle brackets breaking!!! [astroawdowner]
May 02, 2006 (9:54 pm)
Well, I was wondering when SOMEONE ELCE was going to have the same problem I had to deal with last year, I bought a 91 awd for 1000 bucks because the LH frame bracket on the front diff was torn out.I repaired it my self by having the auto wrecker cut out a bracket off a frame in the bone yard cleaning up the area on mine and stickweding the replacement bracket back in I then replaced the fron diff because the housing was cracked from the whole front end falling down while driving (I assume as the I bought it at auction) When I got the girl back together I noticed the transfer case was locked up but good. ( see complaints about a binding feeling in parking lots or on slow sharp turns)I was out of money so I drove it all year like that recently the rh spring steel bracket snapped in two and the rubber mounts were ready to tear out again! The solution? get a good transfer case and all will be fine , Incedently after fixing the brackets I removed the front drive shaft and have been using it in rwd mode for 3 months now with no further issues. I will eventually fix the damn thing!Normally you cannot do this but the transfer case is so hopelessly bound up it drives the rear with out slipping! We increased our fuel ecomomy by 10 mpg also! it was really slowing us down before. If you need any more info I have been studying this issue since I got it and would be glsd to give you some more info if you need it
#1331 of 1973 Re: Astro AWD front axle brackets breaking!!! [ronbo66]
May 03, 2006 (8:11 am)
I have a 97 AWD, can I just remove the front drive shaft for the summer months? In your post you say it worked on yours but wouldn't normally work if the transfer case is not bound up. I could use the improved MPG.
#1332 of 1973 Re: Astro AWD front axle brackets breaking!!! [cob]
May 04, 2006 (11:05 am)
I could not tell you for sure, In therory it should not work beacuse the load of the front driveshaft has to do with the slippage allowed to the rear wheels. I decided to try it only because I knew the transfer case was fubar. The increased mileage was mostly due to the fact the front and rear wheels were not fighting each other! I belive if your transfer case is operating properly you may not see those kind of gains. You could always try it; it takes about 10 minits to remove the 8 bolts. You will need a special 8 point female torx socket on some models to remove the bolts. If it does not work just pop it back in again!
#1333 of 1973 Re: 1990 Chevy Astro won't run [cob]
May 05, 2006 (9:59 am)
Oil pressure switch? Hmmm....well, why would that allow for the vehicle starting, running for a bit then dieing? I thought the oil pressure switch was just an indicator light on the dash, or a gauge telling you when you have low oil pressure? How would either of these account for the problem? Many have told me to replace the Ignition Module, and the pick up coil for starters...problem is,the Module isn't exactly cheap...costing approximately $122.00...so I am not keen on replacing apart that may not be the problem.....could also be a bad wire on the Ignition Coil, or bad coil....so I am looking at replacing those two, and putting in new plugs and wires....the van needs them as proper maintenance anyway....I am stubborn about taking it to a mechanic, since every single place I've spoken to, has indicated it will be:
$40.00 for the tow
$70.00 for the scope
$35.00 for the no start
varies per location, but they all want $100.00 minimum to start...sheesh...I could buy wires, plugs, Ignition coil and Pickup coil for $100.00.....and the vans problem would either be solved, or the van would be better off with new parts, most of which it needs eventually anyway....
The only thing that would be left, is the Ignition Module, and if that is the culprit, I would be ahead of the game, having put new parts all over the engine......
I was just hoping someone couldreally narrow it down based on the info provided.....thanks very much for your suggestion though....are you sure it is called the oil pressure switch?
#1334 of 1973 Re: missfire [themouas]
May 05, 2006 (11:26 am)
Need some details on how to find the distributor, rotor and camshaft sensor. 2002 Astro- haven't been in a car this new before and don't see what I'm used to seeing!
#1335 of 1973 Camshaft Sensor Error 0301
May 05, 2006 (11:31 am)
Need some details on how to find the distributor, rotor and camshaft sensor. 2002 Astro- haven't been in a car this new before and don't see what I'm used to seeing! Lots of black plastic!!
#1336 of 1973 Re: 1990 Chevy Astro won't run [dreamcatcher2]
May 05, 2006 (1:44 pm)
The Haynes manual wireing diagram calls it the oil pressure switch and sending unit. It is wired to the fuse block under hood and fuel pump relay. If it detects alow oil pressure it shuts off the engine to keep it from damaging. If could be getting a false reading. The van starts and then stalls when it gets a low reading. That was just one posibility.
#1337 of 1973 Re: Camshaft Sensor Error 0301 [ldoscher]
May 05, 2006 (1:47 pm)
You need to remove the engine covers inside the van. The distributor is on the back of the engine. The rotor and camshaft sensor is under the distributor cap.