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 Forum: 1987-1991   Topic: 89 SSE sputtering on acceleration

Posted: Thu Mar 01, 2018 3:19 pm 

Replies: 20
Views: 1252


Has the Mass Air Flow Been checked? The fueling system on the older Bonnevilles is dependent on that MAF reading correctly.

 Forum: General Chat   Topic: Transmission Fluid

 Post subject: Re: Transmission Fluid
Posted: Thu Mar 01, 2018 3:09 pm 

Replies: 8
Views: 603


I use Valvoline Max Life and Havoline( Dexron IV ) Both Licensed by GM

 Forum: General Chat   Topic: Pennzoil woes?

 Post subject: Re: Pennzoil woes?
Posted: Thu Mar 01, 2018 2:59 pm 

Replies: 11
Views: 703


I have used Pennzoil and Pennzoil synthetic for a long time with no issues.. My old 91 Bonneville always had some valvetrain noise on a cold start but was quiet after a couple of minutes.. It always had great oil pressure as well.. It was like this till it met the car graveyard.. My 95 Thats been si...

 Forum: 1992-1999   Topic: 96 vs 97 PCM?

 Post subject: Re: 96 vs 97 PCM?
Posted: Thu Mar 01, 2018 2:45 pm 

Replies: 24
Views: 979


97 had the 4T60E for the NA and 4T65E for the L67 Supercharged. But the NA tune will only control the 4T60E properly, and the L67 tune will only control the 4T65E properly.. If ZZP finds a way around this please let us know.

 Forum: 1987-1991   Topic: No start manifold backfire

Posted: Wed Feb 14, 2018 11:36 am 

Replies: 6
Views: 728


There is no crank learn or the like on these older ECM's... The ECM simply learns over time.. all of the basic info such as the tune are stored on the MEM-CAL Chip.. I agree with Randall, look at the crank sensor, ICM( Ignition Control Module )... Fuel pulse at the injectors and fuel pressure.. And ...

 Forum: 1987-1991   Topic: Softer ride for bonneville?

Posted: Wed Feb 14, 2018 11:31 am 

Replies: 7
Views: 673


Some Bonnevilles had the F41 suspension( Firm Ride and Handling )

 Forum: 1992-1999   Topic: Correct key fob?

 Post subject: Re: Correct key fob?
Posted: Wed Feb 14, 2018 11:27 am 

Replies: 15
Views: 679


The 96 SSEi had keyless as standard equipment, The 96 SE is a tad different.. If the 96 had option group 1SB keyless was an option, if it was option group 1SC or 1SD it was standard.

 Forum: 1992-1999   Topic: 96 vs 97 PCM?

 Post subject: Re: 96 vs 97 PCM?
Posted: Wed Feb 14, 2018 11:19 am 

Replies: 24
Views: 979


The 97 PCM with the with a 97 SSEi tune will only properly control the 4T65E.. The 65E only uses a PWM solenoid for TCC lock.. Where the 96 4T60E uses a TCC on-off and PWM apply Solenoids So the 96 4T60E will never lock up with the 97 L67 Tune.. The codes you see are due to the PCM receiving no puls...

 Forum: 1992-1999   Topic: HELP!!! Transmission in a 95

Posted: Sat Dec 09, 2017 12:59 pm 

Replies: 5
Views: 571


Both the 92 and 95 Bonneville 4T60E use the PWM strategy... But they are wired differently internally... I really wouldn't go backwards from 94- 95 to 92, but I would go forward like 96 and or 97 as the 4T60E was improved for those years.. the 94-97 4T60E for the H body is wired the same.. 92-93 is ...

 Forum: Your Ride: Pics and Videos   Topic: John's Pontiac Garage open for business at a new location!

Posted: Sat Dec 09, 2017 12:48 pm 

Replies: 15
Views: 985


Congratulations !! Looks beautiful

 Forum: 1992-1999   Topic: A few codes...ugh.

 Post subject: Re: A few codes...ugh.
Posted: Sat Sep 30, 2017 2:43 pm 

Replies: 10
Views: 1146


I'm just glad you found that Darcy... Good to see another classic still running the road :)

 Forum: 1992-1999   Topic: Persistent High Idle

 Post subject: Re: Persistent High Idle
Posted: Fri Sep 29, 2017 5:49 pm 

Replies: 4
Views: 725


I know I'm late to this ball game... But I would check and see if there are any Transmission Range Switch failure codes

 Forum: 1992-1999   Topic: A few codes...ugh.

 Post subject: Re: A few codes...ugh.
Posted: Fri Sep 29, 2017 5:44 pm 

Replies: 10
Views: 1146


did the balancer rub on the wires at all? That is fairly uncommon among the 3800's unless that wire/wires pop out of the holder.. But with the wire loom being destroyed the wire rub would be possible.

 Forum: 1992-1999   Topic: Help!!!! Intermittant CEL and RPM drop/stutter

Posted: Fri Sep 29, 2017 5:40 pm 

Replies: 5
Views: 666


Look to see if you have a code P1361

 Forum: 2000-2005 (other than GXP)   Topic: Engine cooling

 Post subject: Re: Engine cooling
Posted: Fri Jul 07, 2017 2:47 pm 

Replies: 8
Views: 743


All 3800's used a 195 T-Stat and had a high speed fan turn on of 227F, low speed was 210-212F.. The older Bonneville 88-99 had better cooling systems tho.. The 00-05 Bonneville had a skinny radiator and no option for HD cooling.. My 03 would spike to 225 on the highway climbing the mountains.. I nev...

 Forum: 1992-1999   Topic: Batteries got me all charged up right now...

Posted: Fri Jun 30, 2017 9:20 am 

Replies: 4
Views: 661


It could possibly be a drain or an alternator issue... I have seen strange things from time to time on the older H bodies.. And you never know you could have relay stuck on draining power some.. Could even be the RAC module.. Hard to point at any one item.. I was using Wal Mart batteries, had some d...

 Forum: Performance & Brainstorming   Topic: Benefits of an EGR Delete?

Posted: Thu Apr 13, 2017 8:28 am 

Replies: 7
Views: 982


Essentially, it's to dial the combustion temps down a bit, hopefully out of the range that causes NOX emissions. With no EGR, the early L27's were slightly more susceptible to burning valves. This 100%... The 1991-1992 did not need an EGR valve to pass emissions, yes they were that clean even back ...

 Forum: 2000-2005 (other than GXP)   Topic: Fuel Line

 Post subject: Re: Fuel Line
Posted: Mon Feb 27, 2017 7:09 pm 

Replies: 2
Views: 708


This is not a great picture, But its what I used on my 95 Bonneville, My 03 Bonneville and I used the same kit to build the lines for my Van engine swap. http://img.photobucket.com/albums/v294/Jr3800/Jrs3800/DSC_0257_zpsn7aflebm.jpg This is the kit I used.. Again pics aren't good.. I used this kit 8...

 Forum: 2000-2005 (other than GXP)   Topic: Auto light annoyance

 Post subject: Re: Auto light annoyance
Posted: Mon Feb 27, 2017 5:49 pm 

Replies: 8
Views: 951


Only thing I know you can do if in park is to turn the left timer switch to off... The lamps will stay off till you pull the shifter out of park..

 Forum: 1992-1999   Topic: 93 SE Oxygen sensor wiring help needed!

Posted: Mon Feb 27, 2017 5:31 pm 

Replies: 4
Views: 712


The 93 is kind of a one off year in that it uses a 3 wire heated O2 sensor.. First year of the heated O2 with the 3800..

1994-96 used the AFS-75 4 wire heated..

Try to get a 3 wire for the 93... AC Delco AFS-76 is recommended.
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