Question about 1999 Chevrolet Astro

1 Answer

VAN WONT START

WHEN COLD/WET WEATHER VAN WONT START. ELECTRIC FUEL PUMP TURNS ON BUT SOUNDS LIKE NOT GETTING GAS. CAP AND ROTOR REPLACED SINCE TOLD MOISTURE IN IT. TRIED STARTING QUITE A BIT AND DRAINED BATTERY. RECHARGED BATTERY AND STILL SOUNDS LIKE GAS NOT GETTING TO ENGINE. THIS HAPPENS EVEN WHILE PARKED IN THE GARAGE
THANK YOU

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,952 Answers

: Sounds like you have attacked the problem pretty well. Check the fuses. Do a "pin" check for power and ground to the ECM. When you replaced the ECM, did you use a new prom? If not, you could have a faulty prom. Check fuel pressure and using a Noid light check the pulse at the injectors. For your information, the injectors will have 12-volts and the computer momentarily grounds them to open the injector.
Your problems may be caused by a faulty ignition switch or starter solenoid.
Intermittent electrical problems are difficult to trace. We would suggest first checking the ignition switch and next the neutral safety switch
You are close to the right track but check the fuel pressure during the no start condition as you may have a faulty fuel pump. You also could have a vehicle speed sensor problem

Posted on Dec 15, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

1993 honda prelude starts fine in dry weather but in wet weather it just cranks.


Sounds like moisture in the distributor cap to me. I would definitely start there first.

Mar 02, 2015 | 1993 Honda Prelude

1 Answer

I have a 2005 Jimmy It will not start in extremely cold weather the battery is fine it just keeps cranking but it doesn't seem to be getting fuel on extremely cold days. Plugged it into the compter which...


theres no problem if there is no check engine light in the mornings just turn the key in on position pump gas bout 8-10 times then tryb to start it

Jan 25, 2014 | Cars & Trucks

1 Answer

In wet and damp weather my 1988 Golf GT runs real rough and eventually stalls, but runs fine in dry conditions. What's going on?


sounds like its time for tune up wires and rotor cap and such..with age they break down and moisture is shorting some of this out..to test this using a spray bottle spray these wire down and listen for a snapping sound from the coil..this is proof of the water getting the old wiers wet..(condensate moisture)

Feb 15, 2013 | 1988 Volkswagen Golf

1 Answer

Would crank but would not start in extremely cold weather. Now it won't start at all but fires on and off.


Do a tune-up, Plugs, rotor button and distributor cap. Not sure if your model has a cap or coil pack. When you say fires off and on do you mean it starts off and on or you get ignition spark off and on. If you have a cap, the rotor button can get worn down and not make good contact with the contacts inside the cap. When engine rotates the rotor button rotates inside the cap which produces spark through your plugs wires. If you have a coil pack, it could be going bad. If coil packs get moisture within it and diffuses the spark from going into the plug wires. Moisture and wetness causes a lot of problems with the ignition system, so it's best to apply Di-Electric Grease to the coil pack, wire boots on both ends. The grease stops moisture from getting into the components and sparks from jumping to the moisture.

Jan 17, 2010 | 1994 Honda Accord

3 Answers

1996 Astro AWD 4.3L V6 308,000Km engine hesitation/surging


tsb remove dist cap ,clean out breather holes i replaced cap and rotor at the same time. chevy has the problem with the 4.3l astro,s and blazer i have both.fixed the problem when buying the cap and rotor the directions inside will also tell you how to fix

Nov 23, 2009 | 1997 Chevrolet Astro

1 Answer

My 1996 Camry has a cold start problem. Since the cold weather started, it wont start in the mornings until i give it gas for a minute or turning the ignition on for about two minutes. What can be the...


I would think that the fuel pump one-way check valev may be malfunctioning; or, you just may need a new set of plugs and wires, a cap and a rotor.

Oct 20, 2009 | 1996 Toyota Camry

2 Answers

2002 chevy blazer won't start when it is cold/damp outside. Fuel pump repaced 3 times in a year. What could causing this?Starts fine when weather is nice.


could be a defective distributor cap(crack in it allows moisture in...moisture displaces the spark from where it needs to go).
You could try to replace the distributor cap and rotor.

Aug 30, 2009 | Chevrolet Blazer Cars & Trucks

2 Answers

1991 dodge with a 3.1 ltr engine and it will not start in cold weather, changed the fuel pump and cleared out the fuel lines changed the fuel filter and once again if it go to below 20 it will not...


You could have a bad cold start valve, go to an auto parts store and buy the cold start valve and replace it. you will see it on the intake manifold also pull off the air cleaner or hose and get a can of berry mans carb cleaner and clean the throttle plate inside and out then lube the throttle cables with Wd 40 then try it, if it starts your set, if not try pushing the throttle all the way to the floor and crank for 15 seconds then wait one minute then slightly press the gas pedal and try starting again this is how you clear flooded engine. If it starts you know that the throttle plate or cable froze shut and would not allow air into the engine causing it to flood. also check that the O-ring is not missing on the distributor cap which would allow condensation to form inside the cap shorting out the plugs and allowing it not to run. if it does it again pull the cap and look inside the cap if you see moisture then you need to replace the cap and rotor and O-ring.

May 28, 2009 | Dodge Caravan Cars & Trucks

3 Answers

98 chevy suburban engine turns over but wont start.


I'd Start With Checking The Spark Plugs, This Can Be Done By Pulling Them Out And Setting Them To A Ground And Trying To Start it Result Should Be Spark Obviously. With The Cold Weather Involved Id Try Cleaning My Valves If You Wanna Go The Easy Way Buy A Can Of Fuel Additive Injector Cleaner And Run It through A Full Tank Of Gas.

Jan 14, 2009 | Ford Expedition Cars & Trucks

2 Answers

Wont start


you likely have a bad cap and rotor when the weather gets humid and or very cold moisture can get into the cap and cause a crossfire condition(firing on mulitple/wrong sparkplugs) and will prevent it from starting.My 1996 chev silverado has done this to me 2 years in a row on one of the coldest nite of the season and both times a cap and rotor fixed the problem.(the first time i bought the cheapest one I could find...not so cheap now though!)
Hope this helps!

Jan 05, 2009 | 2002 Chevrolet Astro

Not finding what you are looking for?
1999 Chevrolet Astro Logo

272 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

60769 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...