Question about 2000 Chevrolet Astro

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Engine cranks for 8-10 seconds before it starts when engine is warm

When engine is cold, it always starts instantly like it should. Once engine is warmed up, it cranks for 8-10 seconds before starting. while cranking, it doesn't seem to try to start at all for 8 to 10 seconds then it starts. After it starts the idle will drop to 2-3 hundred rpm then right back to about 600 rpm. then it runs fine till next time.

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  • Chevrolet Master
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You must RUN the SCANNER/computer for better diagnostic and fix it. YOu can have some faulty like: PCM+BCM+ignition coil, sensor, etc. see the diagram attached.
God bless youEngine cranks for 8-10 seconds before it starts wh - 225004b9-8d42-483d-a0e8-ee6550772ecc.jpg8c2fbe48-c384-4953-ac1d-abce3867e5a4.jpg

Posted on Jul 27, 2013

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Posted on Jan 02, 2017

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SOURCE: Warm start up problem on 3.8L engine 76,000 miles

have someone check the idle control valve

Posted on Aug 26, 2008

  • 4 Answers

SOURCE: Hard Start with trouble code 32

You should have your battery checked, it may be getting old and doesn;t have as much cold cranking power, I don;t think code 32 has anything to do with the slow cranking when cold.


Trouble Code 32 indicates that the Exhaust Gas Recirculation (EGR) valve diaphragm is not where the ECM expects it to be. The ECM controls the diaphragm with a Pulse-Width Modulated (PWM) waveform. The EGR has a vacuum bleed solenoid that adjusts the vacuum applied to the EGR valve based on this pulse width. If there is sufficient vacuum at the EGR valve, a switch closes to send a signal back to the ECM. The absence of this signal is the bases for code 32.
The conditions for setting this code are:

  • no vacuum to EGR (switch open), and
  • Code 33 or 34 (MAF error) is not present, and
  • engine running and LV8 is less than 100, and
  • coolant temperature is > 118 deg F (48 deg C), and
  • the EGR solenoid duty cycle is < 65%, and
  • the above conditions are met for more than 25 seconds


Typical causes for this code include:
1) Faulty EGR valve-to-ECM connection
2) Plugged EGR passages and/or sticking EGR valve
3) Defective EGR valve
4) Defective ECM

Posted on Jan 05, 2009

66 chrgr
  • 1011 Answers

SOURCE: 1999 Grand Am 3.4litre idle problems. Starts rough

it sounds like you have a injector leaking down into one of your cylinders so it is flooding out a cylinder thus runs rough and long cranks.

Posted on Jun 16, 2009

  • 202 Answers

SOURCE: 96 RS Camaro High Idle on Cold Start.

you prob need a coolant temp sensor

Posted on Oct 30, 2009

  • 1509 Answers

SOURCE: rough idle then stalls

Vacume leak or bad idle motor. With the car in park and running with the hood open listen for leaks moving your hand around the different hoses looking for a change in the sounds that you hear. The idel motor also makes the car idel up to 1500 RPM or so right at start-up then idel down, If it doesn;t the idel motor is likly. Check engine light is on when running? Test for codes, Follow code test charts don't skip any steps!.

Posted on Nov 02, 2009

Testimonial: "Found the problem vacume leak like you said."

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2 Answers

If my jag has been sitting for more than 24 hours the first time I try to start the engine takes maybe 8 or 9 cranks before it will start, after this she starts quickly.


Sounds like the engine oil is quite thick when cold so you probably need to check the last time the oil was changed along with the filter.once it gets slightly warm the engine takes less cranking amps to turn over so it will start quicker.

Apr 20, 2015 | Cars & Trucks

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Starts after several cranks when cold


engine temperature sensor ? On a cold start the sensor tells the ECU it's cold so the ECU adds more fuel until the engine is warm.

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4.3L V6 CPI - center port fuel injection . you need 62 psi .When cold give it a shot of carb.cleaner or starting fluid ! does it start then ?

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Since day one, my 2007 Dodge Ram Hemi always starts like its in a cold engine cycle. In other words, it starts at a high rpm and steps down in increments for about 20 seconds. Hot, cold no matter. It...


Yes, it is normal for a vehicles idle to be high when first starting up, no mater what the temp. If it`s already warmed up to operating temp, it will still have a high idle for a brief moment when starting. Usually this is the IAT (Intake Air Temperature) sensor. Located in the air duct down from the air filter, and before the throttle body.

Main proplems from IAT sensors are to low of an idle at normal temp, or the idle never comes down after warm up.

Your gas milage problems would stem from Oxygen sensors, plugs, wires, timing, etc...

Here is a quick test, just incase your OBD II (Computer, PCM..) memory module is not working properly. With the engine running, using the tips of your fingers, tap on the PCM, if the engine stumbles or stalls and sends troubles codes that light up your check engine light while tapping, if it does, check to make sure all wires are securely attached to it.

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Ok I have a toyota corolla AE91 ... It starts it runs for 20 minutes or so then it stalls. The engine cranks but does not fully start. It only restarts when the car has cooled down. My mechanic changed the...


One possibility is that the engine coolant temperature sensor is faulty and is stuck in full cold mode. Lots of fuel is scheduled for cold starts, however, as the engine warms up, it needs less fuel. Too much fuel when warm and the engine floods out or riches out. The engine coolant temp sensor is telling the computer that the engine is ALWAYS cold even when it is warm. So, too much fuel is being sent once the engine is warm.

Feb 13, 2011 | Toyota Corolla Cars & Trucks

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Good day: I don't accept that cold starting an engine at 2000 RPM is OK. Those immediate revs on a cold engine are wearing out parts that need oil lube and warm-engine clearances. Is there a simple way of...


I have heard that Fords theory behind that is to supply maximum oil pressure to moving parts sooner. All the Ford products do this and the motors last well into the hundreds of thousand of miles. I wouldn't be to worried about it since there is no issue with it to my knowledge and there is no way to limit the cold start RPM's.

Cold start warm ups are a thing of the past. Better lubricants, engines, fuel injection and other computer controls have made start ups easier on the engine. 30 seconds is barely enough time to warm up anything and after a few seconds oil has already reached all of its intended lubricating points. That first few seconds is the hardest on the engine. Regardless of how any RPM's it is turning.

Oct 20, 2010 | 2000 Ford Taurus

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Engine cranks fine, good battery but just won't


check fuel pressure, try cycling the key to the on position an couple of times not the start position to cycle the fuel pump then try to start it. could be the cold start circuit. once its warm does it start easy ?

Aug 09, 2009 | 2008 Hyundai Elantra

1 Answer

Chugs, acts like it's not getting gas once warmed up. Idle's fine


This problem can be several things. When your engine is cold, your computer is in a "closed loop" and just pretty much keeps the engine running until warmed up. After reaching operation temperature, the computer starts reading all the sensors. If one sensor is not connected or is defective, you will experience performance problems. Most of the time this will turn on the check engine light, but not always. Second is the fuel pump. This too will cause erratic engine problems.

Apr 10, 2009 | 1991 Chevrolet Silverado 2500

1 Answer

Starts when cold but once it is warm and is shut off it won't


Hi!
Looking at your brief description can I guess that when warm the starter turns slowly? as if a flat battery?
If this is so then the starter windings and armature are possibly cooked??
Have you recently tried cranking the engine too much? or with a poorly charged battery?
When cranking the starter gets very warm and if not left to cool after 5 seconds of cranking can cook the wiring/armature internals of starter.
When your engine is cold the Windings/armature are too so will turn easier, but when warm all internals are expanded so more drain and heat! then causing the starter to revolve slowly taking a lot of power from engine and ignition circuitry.
This can also be caused from trying to start a vehicle with low battery, Volts go down Amps go up cooking/frying the winding/armature.
I am suggesting this as all I have to go on from the description STARTS COLD BUT ONCE IT IS WARM???? I hope this helps,
If it does please remember to press FixYa button as I have taken a lot of time to post the response.
Good Luck!
Paul 'W'
Onyer~EDSon(:0)~[><U.K.

Jan 12, 2009 | 1993 GMC Safari

1 Answer

THE GLOW PLUG TURNS ON WENT ENGINE IS COLD


Yes it does. Let the glow plugs warm up for 7-10 seconds (the light on the panel should go off) and then crank the engine. If the weather is cold, half an hour of running does not warm up the engine completely so you need to use the plugs for the first few startups during a cold day.

Dec 17, 2008 | 1995 Mitsubishi Montero

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