Question about 1999 Chevrolet Silverado 1500

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Hesitation My 99 chevy silverado has a lot of hesitation when i first take off if i give it a fair amount of gas and while drivin in overdrive my trucks sputters or cuts out every once in a while?

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Buy a couple bottles of gas line antifreeze and put them in the gas tank.... sounds like water in your fuel.


Robert

Posted on Sep 27, 2008

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Check fuel pressure, key on engine off and then with engine running. What did you get?

Posted on Apr 11, 2013

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1989 chevy hesitates when giving it alittle gas and almost dies but dosent


It appears that you have what is known as a flat spot in the carby ( I assume you have one). It occurs as the butterfly is opened and there is a transition period from idle to increased rpm's in the jets . To over come this there is an accelerator pump that provides a squirt of fuel to provide the correct air/fuel ratio until the main jets cut in. If you have a Holley it is in the form of a diaphragm inside a nut in the immulsion block. IN other carbies it is a plunger . If you have EFI then have the codes read to find which sensor is failing

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Hi, egr valves don't always clean properly if they where badly chocked up. It is possible it is still sticking. Can you run an actuator test with your diagnostics/code reader?. Also worth checking the wiring, plugs and vacuum lines around the valve as applicable to your vehicle, often just a good visual inspection will highlite the obvious. Jon

Dec 09, 2013 | 2002 Chevrolet Silverado 1500

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Changed trans fluid in 2002 chevy blazer and now it wont shift into overdrive properly without hesitation


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Random Hesitation


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96 chevy cavalier engine hesitates on hills when giving it the gas replaced fuel filter 2.3 l electronic fuel injection


hesitation under excell can be spark related. check your spark plugs. they may be worn, with exsessive gap.
I always recomend AC delco plugs for GM engines. stay away from Bosch plugs.
Another thing to consider is fuel quality.
Try a different brand.
I have had lots of problems with Arco fuel.

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1 Answer

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You should change all 4 O2 sensors, it will run better :)

Also check your compression. Not enough compression on any one cylinder will cause oil blow-by and cause it to fail emissions. Also, the EGR valve can cause the same symptoms.

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1994 Buick Skylark. Lot of hesitation and jerking, power locks


HI MY NAME IS JUAN:
I HAVE A 93 BUICK SKYLARK CUSTOM
AND I HAD THE SAME HESITATION.
I CHAGED GAS FILTER, AIR FILTER, AND USE SEA FOME IN MY GAS TANK AND USE IT ALSO TO CLEAN THE INTAKE SYSTOM, AND IT HELPED ALOT. TWO MONTHS DOWN THE LINE HADE THE SAME HESITATION AND IT WAS ONE OF THE INISION COIAL PACK WAS NOT GIVING THE ELETRICAL SPARK TO THE PLUG. I CHECK IT BY PULLING THE CABLE OFF THE SPARK PLUG WITH THE CAR RUNNING AND FOUND THE ONE THAT WAS NOT GIVING SPARK. I REPLACED THE PACK FOR THAT CILINDERS PLUG AND THE PROBLEM WAS GONE.
HOPE THIS CAN HELP YOU.

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Once truck is started if i drive it has a lag


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Apr 12, 2009 | 1999 Chevrolet Silverado 1500

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My diesel doesnt have power when i give it gas.


if its injectors you will smeel the diesel fuel in the engine oil, does it fell like the tranny is shifting right? the maybe the nsbu switch, neutral saftey backup

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