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Hi I have a 2004 monte 3800 supercharged. Car used to just turn off while driving. Changed icky and coils. Seemed to be fine. About a month ago it started rough ...turned it off...wouldn't start again. No spark. Checked wire harness. Seemed fine. Hooked battery back up and it started up fine. Now when I try to start it I have to hit the gas when I crank it over for it to start. Had a miss fire in one of my plug wires. Boyfriend changed that wire.started fine. The next morning I had to hit the gas to start it again. Now its running about 4k at 60mph. Got it back home. Let it idle a minute. Hit the gas a little all my lights dimmed at it stalled. Would no cat converter cause this? Pcm? Vacuum leak? All the above? :(

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  • 194 Answers

Too many things going on at once have you had the trouble codes read? if not do so. may help find the problems. autozone checks and clears them for free start there.

Posted on May 09, 2014

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6ya6ya
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Posted on Jan 02, 2017

  • 11 Answers

SOURCE: 1995 Chevy silverado with a

I have experienced this problem on similar vehicles. You should try and replace the coolant temp sensor. If it is not reading the correct temp to the ecm, it will not get the right fuel map. Also, the cts will not always throw a code.

Posted on Aug 04, 2008

cadman000
  • 607 Answers

SOURCE: 1990 Buick Century 3.3L Check Engine Light comes on, stalls.

Need to check for fault codes. Possibly a faulty sensor causing the fuel system to run rich or lean.

Posted on Mar 27, 2009

  • 4793 Answers

SOURCE: cranks but won't start like it has no gas

did you reset the alarm/immobiliser system every time the power was disconnected???

Posted on May 21, 2010

johnjohn2
  • 5763 Answers

SOURCE: Truck not firing properly front coil pack not firing at all.

if this truck has an o2 sensor i would replace that and also make sure the cat-converter is not plugged,this would give you your powerloss and egr code,next is your coil,this may be caused by the computer or your crank sensor,look at the tone ring that the crank sensor uses and make sure its not missing teeth or broken,also check all your fuses.

Posted on Jun 12, 2010

carsandcomps
  • 722 Answers

SOURCE: My 1997 Ford Taurus stalls when I accelerate. It

Replace first, the fuel filter if this has not already been done. You may have a plugged filter, and these are very inexpensive. If this does not resolve the issue, locate the MAS (mass airflow sensor) located between the throttle body and the air filter housing. Start the car and let it idle normally; with a screwdriver handle or other such small tool, tap the mass airflow sensor (small black unit; will have a wiring harness hooked to the side of it); if the car dies, stalls, hesitates; first purchase MAS cleaner at the local auto parts dealer - specifically ask for Mass Airlflow Sensor Cleaner. It will should cost between 7-12 bucks - but you wont need the whole can - however, when using it: (if the car does not die, stall or hesitate and the idle stays the same, than the sensor is not bad) If it does however:
1. Remove the MAS (disconnect wiring harness) you may need to pull the top end of the air filter housing off.
2. Spray inside the sensor generously from both ends ensuring it's entirety is sprayed. Let stand for 15 minutes to airdry.
3. Re-install the sensor and start car. If there is still no improvement and the car hesistates, 1. Ensure the air filter as well is in good repair, and that there is nothing causing any air flow restriction between the airfilter and the throttle body.
4. If the airfilter is good, and there are no restrictions to air flow, consider replacing the MAS, however if you can get the car to the auto parts dealer, or to a technician (who may charge; auto parts dealers usually don't) have them run a diagnostics test on the car.
5. At this point, if cleaning the sensor has made no improvement, and the car stays idling, does not hesitate when tapping the sensor, the air filter is good, the fuel filter is good - then the next step is to replace the fuel pump.
Please let me know if you need further assistance.
carsandcomps,

Posted on Sep 26, 2011

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