Our Community is 940,000 Strong. Join Us.


bogging out


4.3 liter hater
11-14-2007, 08:30 AM
when i give its gas it hesitates,dies out for second then kicks back in. I checked the sensor but no codes where given. dont know if it is just a bad ground or ignition problem. any ideas?

MT-2500
11-14-2007, 08:44 AM
Welcome to AF.
What year and engine and mileage?

How is the tune up end?
Any engine miss?
Any check engine lights?
The more info you give us the more we can help.
MT

Have you checked fuel filter and fuel pressure?

Sinful7
11-14-2007, 08:11 PM
Check the fuel pressure, sounds like a bad fuel pump. :-(

4.3 liter hater
11-15-2007, 10:16 AM
93 gmc jimmy with the 4.3 vortec motor. i towed it home today. now will not start. I have a good spark to the destributer but alot weaker to the end of the wires. when i try starting you can smell a lil bit of fuel. i have good fuel preesure to the spyder injecter. oh yeah 223,000 miles on it.

Sinful7
11-15-2007, 10:15 PM
How did you measure the spark intensity? Visually? Maybe a cap/rotor/wire problem, but in my experience, usually that won't prevent firing like weak fuel pressure will. The spider won't even activate with low pressure. I've replaced my pump twice in the last 5 years when the truck was acting as you described.

What is your pressure reading?

Add your comment to this topic!