Really bad acceleration through first, second and third, poor mileage

Tiny
LUCKYLUCIANO96
  • MEMBER
  • 1996 CHEVROLET 1500
  • 4.3L
  • V6
  • 2WD
  • AUTOMATIC
  • 250,000 MILES
My truck has recently started sounding like it's sucking air horn blowing air possibly. I have 3 codes that are the EGR and the bank 1 sensor 2 code is going off for the heater circuit and not responding to fuel cutoff something like that. It has a new cap, didn't do the rotor. Rotor, new wires, new plugs. Yesterday new fuel pump Fran fuel treatment. I clean the EGR valve. I've done starter fluid around the air intake and what not. I didn't get any high-revving or anything like that. Just wondering if anybody could help me out. Really bad acceleration through 1st 2nd 3rd. Sounds like good ain't going nowhere by me and it does but I like it used to I'm swinging on for at least a month or so. And oh my gosh mileage has went down significantly could help me out that be great.

The EGR gasket was a little rough and I noticed black marks that seemed to indicate that exhaust was blowing out sorta around the gasket holes. But when I did the starter fluid around it it did nothing.
Do you
have the same problem?
Yes
No
Sunday, February 9th, 2020 AT 8:22 AM

3 Replies

Tiny
KASEKENNY1
  • EXPERT
Let's start with what the actual codes were. The noise that you are hearing and low power, plus poor fuel mileage sounds like an EGR issue. However, let's start with the code so we can get the diagnostic info and narrow this down.

https://www.2carpros.com/articles/symptoms-of-low-engine-power

Thanks
Was this
answer
helpful?
Yes
No
Sunday, February 9th, 2020 AT 2:14 PM
Tiny
LUCKYLUCIANO96
  • MEMBER
I cleared them and so far it is only throwing the p0140 code for the bank 1 sensor 2 not responding to fuel cut off or fuel enrichment signal.
Was this
answer
helpful?
Yes
No
Sunday, February 9th, 2020 AT 2:17 PM
Tiny
KASEKENNY1
  • EXPERT
While I don't think this is the route cause, we do need to tract it down. The reason being it is related to what you are seeing. Part of this test is determining if the ECM is the issue and that could definitely be the route cause. So if we fix this code, it could fix the whole issue.
Was this
answer
helpful?
Yes
No
Sunday, February 9th, 2020 AT 5:40 PM

Please login or register to post a reply.

Sponsored links