Slight Stumble

[txshark44]

Anyone have any advise. My truck has a slight stumble on light accel and cruising speeds. No miss when your on it hard. New plugs, wires, cap and rotor. Flushed fuel injectors.

 

[supersports10]

Re: Slight Stumble

tps sensor, VAC LINE LEAK, throttle body shaft leak.....

 

[Flyin Ryan]

Re: Slight Stumble

aside from what was mentioned above i'd also make sure your egr and o2 are functioning correctly as well... any check engine lights?

 

[jimmyz79]

Re: Slight Stumble

Same here. All new wires, plugs, cap, rotor, vac lines. no check engine light.

Its kind of annoying. Guess I'll start replacing sensors.

Can a TPS be bad and not log a code?

 

[txshark44]

Re: Slight Stumble

put a Tps in already because truck was dying when accell that took car of that but still misfire. No codes. Throttle Body shaft leak ??????? sound possible because I seem to loose vacum to AC every now and then

 

[supersports10]

Re: Slight Stumble

put a Tps in already because truck was dying when accell that took car of that but still misfire. No codes. Throttle Body shaft leak ??????? sound possible because I seem to loose vacum to AC every now and then

bam!!! right there....you answered your own question,,, you have a vac leak,...check ALL of the lines.