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Old 10-27-2014, 11:33 AM   #1 (permalink)
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Default 2004 forenza stalling

So my 04 forenza idles rough at stoplights, but a new problem has started. while going down the freeway the car kept on bucking slightly anytime I was on the gas, then coming off the freeway it died at the light and took about 5 minutes cranking to re-start. it did this several more times before I got home. no check engine light and there are no codes displayed. Where should I begin for this?
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Old 11-02-2014, 07:47 PM   #2 (permalink)
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Default still stalling

I cleaned the throttle body and it ran good for a minute, but it just keeps stalling when I stop and then it has to sit for 10 or 15 minutes before it will start. When trying to start it cranks like there is no spark or no gas. I need help, can anybody please point me in the right direction?
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Old 11-03-2014, 09:34 PM   #3 (permalink)
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Yes. It is a hint to get something else, Cut your losses,and buy something more reliable.

If you just have to have this car, have you checked the FI or ECM? Dying Fuel Injector(s) can mimic the same symptoms (bucking, stalling) you describe, since the functioning injectors would take up the slack for the one that is malfunctioning.
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Old 11-03-2014, 09:44 PM   #4 (permalink)
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I agree about getting rid of it, but it is my daughters car. Do you know the best way to check the fuel injectors? I was thinking maybe a weak fuel pump and was going to get a fuel pressure gage to check it. What do you think about that?
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Old 11-03-2014, 11:12 PM   #5 (permalink)
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Quote:
Originally Posted by mcfam View Post
I agree about getting rid of it, but it is my daughters car. Do you know the best way to check the fuel injectors? I was thinking maybe a weak fuel pump and was going to get a fuel pressure gage to check it. What do you think about that?
good move, also pull the vac line off the regulator and see if it shows any signs of fuel, if it does, replace the fuel pressure regulator.

Think logically, fuel air and fire are the life of an engine, if the ratios get screwed then all bets are off. Check the basics, fuel pressure, air cleaner, plug gaps? had one car that suddenly started playing up and refused to start, no CEL but plugs were at 0.120" instead of 0.030. Serves me right for not doing my checks regularly.
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