1995 Bonneville SSEi
#1
Member
Posts like a V-Tak
Thread Starter
Join Date: Nov 2010
Posts: 53
Likes: 0
Received 0 Likes
on
0 Posts
![vektron75 is on a distinguished road](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Default](https://www.gmforum.com/images/icons/icon1.gif)
I have a 1995 Bonneville SSEi 3.8sc. One big problem I have is when the outside temperature reaches around 90% or above and after the car is driven for a few minutes it starts to die out and eventually I can barely keep it going. If i step on the gas it will not respond, it will jerk back and forth like I am taping the gas pedal. I have had this problem for 2-years. If I put the car in neutral when i am moving I can rev the engine but it takes a few seconds of pumping the gas before it revs and then it will only go to a certain rpm, i think around 3.5 or so and the break up. I have had fuel pump and filter checked and both are ok.
I have heard possibilities of things like Oxygen sensor, Super Charger, clogged catalytic converter, bad coil.
Any help would be appreciated.
I have heard possibilities of things like Oxygen sensor, Super Charger, clogged catalytic converter, bad coil.
Any help would be appreciated.
#2
Retired Senior Admin
![](/images/badges/Gearhead.png)
Expert Gearhead
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Likes: 0
Received 29 Likes
on
25 Posts
![Danthurs is a name known to all](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Danthurs is a name known to all](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Danthurs is a name known to all](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Danthurs is a name known to all](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Danthurs is a name known to all](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Danthurs is a name known to all](https://www.gmforum.com/images/reputation/reputation_highpos.gif)
![Default](https://www.gmforum.com/images/icons/icon1.gif)
Do you have any codes? Do you see the SES light flashing at all? The supercharge wont cause this. It would just cause a loss of power, but not a huge loss. I would test the coils, and plug wires. how old are the plugs.
#4
Member
Posts like a V-Tak
Thread Starter
Join Date: Nov 2010
Posts: 53
Likes: 0
Received 0 Likes
on
0 Posts
![vektron75 is on a distinguished road](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Default](https://www.gmforum.com/images/icons/icon1.gif)
Also I have had codes for several years. The EGR valve always shows up and I have replaced it twice and made no difference.
I do have a vacuum leak on the upper EGR tube which I am still trying to seal because I have not been able to locate a new or used one for the Super Charged engine.
I do have a vacuum leak on the upper EGR tube which I am still trying to seal because I have not been able to locate a new or used one for the Super Charged engine.
#5
Retired Senior Admin
![](/images/badges/Gearhead.png)
Expert Gearhead
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Likes: 0
Received 29 Likes
on
25 Posts
![Danthurs is a name known to all](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Danthurs is a name known to all](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Danthurs is a name known to all](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Danthurs is a name known to all](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Danthurs is a name known to all](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Danthurs is a name known to all](https://www.gmforum.com/images/reputation/reputation_highpos.gif)
![Default](https://www.gmforum.com/images/icons/icon1.gif)
Well, if you have been driving with a leaking EGR tube, your AFR has been off. I would suggest fixing the known problems. Check at your local salvage yards. The pick and pull yards should have something for you.
#10
Member
Posts like a V-Tak
Thread Starter
Join Date: Nov 2010
Posts: 53
Likes: 0
Received 0 Likes
on
0 Posts
![vektron75 is on a distinguished road](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Default](https://www.gmforum.com/images/icons/icon1.gif)
I have just purchased a oxygen sensor of ebay and realized when I got it that i would have to splice the wires together, there is no plug attached. The problem is that I do not know which wires to attach because the colors don't match. I know where the wires are supposed to go from the new sensor, like purple and white are heater, grey is ground and black is signal. But i do not know where to connect them because I do not know the destination of the original wires which are purple, tan, and 2-brown.