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Pontiac Bonneville General Maintenance and Repair

2268 messages,  Last post on Jan 25, 2013 at 12:52 PM

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What is this discussion about? Pontiac Bonneville, Sedan

Messages Page 131 of 228

#1295 of 2268 Suspension $$$$ by luvmybonne

May 14, 2004 (11:22 am)

Hello to all,
 
I am the proud owner of a 1996 Bonneville SSEi that I love. The car currently is in need of front and rear struts. I priced these items at a nearby Pontiac dealership and almost fainted at the quote of $301 each for front, $477 each for rear. I searched GM Parts direct and did not find the items. I have the electronic ride control system.
Is there somewhere I can obtain these parts without my wallet needing surgery??

#1296 of 2268 Transmission Etc..... by jwally

May 16, 2004 (11:28 pm)

Problem#1 I have a 96 bonneville with 3800 SeriesII motor and 4T60E transmission with 170,000 miles.I have a vibration/shuttering upon acceleration at around 60-70MPH on highway.If i let off the gas it stops.Its more apparent on slight inclines and when weather is warmer and car is warmed up.I had trans fluid changed(not flushed),filter and an unknown additive put in which seem to help for about four weeks then the shutter came back.No codes came up at fluid change.It does it with cruise control on or off.I changed the plugs and wires 19 months and 42,000 miles ago with GM ac delco wires and 100k plugs.I never changed ignition coil or module.I have tested torgue converter at 50 and 60 MPH by tapping breaks on acceleration at which it seem to stop shuttering and raised RPM by 500.the car otherwise runs great.I had a 89 Bonny with 250,000 miles ran great until a tree jumped in front of me:)A transmission guy told me you can't just change valve body without rebuilding tranny $1500-$2000 is that true?Please post or email me,thanks in advance.
Porblem#2 When car is cold i hear a noise like a bad waterpump or marble bouncing around for the first 2-3 minutes upon start up. I have a new water pump. Noise sounds like its on driver side. I took a long screw driver with my ear on the handle and listen to all engine compenents with negative results.I hear the noise near air filter and when i put my ear on air filter is sounds louder.
Problem#3 When a/c or defrost is on the secondary fan(passenger side) vibrates very hard upon start up and slight vibration at running speed.I changed the motor thinking shaft was bent.
Problem#4 Intake manafold plenum-I had a leak at plastic nipple from intake to tensioner but i got it replaced. I like to know where most leaks occur. I have no leaks now but noticed intake plenum warped about 1/8 of inch where it mounts to throttle body between the mounting bolts.

#1297 of 2268 Re: Suspension $$$$ [luvmybonne #1295] by jwally

May 16, 2004 (11:38 pm)

Replying to: luvmybonne (May 14, 2004 11:22 am)
I changed my front struts on my 96 bonny SE about 3 years ago with Monroe struts,Big mistake i thought i was in the ocean.mechanic told me bonneville's are to big for Monroe struts.I went with KYB stuts and they have been great for 3 yaers.

#1298 of 2268 Transmission Etc..... by jwally

May 16, 2004 (11:39 pm)

Problem#1 I have a 96 bonneville with 3800 SeriesII motor and 4T60E transmission with 170,000 miles.I have a vibration/shuttering upon acceleration at around 60-70MPH on highway.If i let off the gas it stops.Its more apparent on slight inclines and when weather is warmer and car is warmed up.I had trans fluid changed(not flushed),filter and an unknown additive put in which seem to help for about four weeks then the shutter came back.No codes came up at fluid change.It does it with cruise control on or off.I changed the plugs and wires 19 months and 42,000 miles ago with GM ac delco wires and 100k plugs.I never changed ignition coil or module.I have tested torgue converter at 50 and 60 MPH by tapping breaks on acceleration at which it seem to stop shuttering and raised RPM by 500.the car otherwise runs great.I had a 89 Bonny with 250,000 miles ran great until a tree jumped in front of me:)A transmission guy told me you can't just change valve body without rebuilding tranny $1500-$2000 is that true?Please post or email me,thanks in advance.
Porblem#2 When car is cold i hear a noise like a bad waterpump or marble bouncing around for the first 2-3 minutes upon start up. I have a new water pump. Noise sounds like its on driver side. I took a long screw driver with my ear on the handle and listen to all engine compenents with negative results.I hear the noise near air filter and when i put my ear on air filter is sounds louder.
Problem#3 When a/c or defrost is on the secondary fan(passenger side) vibrates very hard upon start up and slight vibration at running speed.I changed the motor thinking shaft was bent.
Problem#4 Intake manafold plenum-I had a leak at plastic nipple from intake to tensioner but i got it replaced. I like to know where most leaks occur. I have no leaks now but noticed intake plenum warped about 1/8 of inch where it mounts to throttle body between the mounting bolts.

#1299 of 2268 Re: Transmission Etc..... [jwally #1298] by jwally

May 16, 2004 (11:47 pm)

Replying to: jwally (May 16, 2004 11:39 pm)
Sorry about double post my computer froze. My 96 bonneville is an SE model.Any help or suggestions is most appreciated.

#1300 of 2268 by alcan

May 17, 2004 (2:30 am)

#1. Take a close look at all 6 coil towers for any signs of carbon tracking.
#2. Try running it (for a short time) with the serpentine belt removed to eliminate any belt driven accessories.
#4. They like to leak where you noticed the warp, behind the throttle body. The EGR tube heats the plastic causing the warpage. It'll eventually fill the valley with coolant, then start ingesting it. Can cause the engine to hydrolock, and antifreeze mixed with engine oil will eventually take out the bottom end.
http://www.northernautoparts.com/ProductModelDetail.cfm?ProductMo- - delId=9088

#1301 of 2268 Re: Suspension $$$$ [jwally #1297] by luvmybonne

May 21, 2004 (8:14 pm)

Replying to: jwally (May 16, 2004 11:38 pm)
KYB?? Help!!
 
Thanks for the info.

#1302 of 2268 Help by luvmybonne

May 23, 2004 (2:33 pm)

What or who is KYB?
There has got to be someplace that sells structs at a more realistic price than GM.
 
Luvmybonne

#1303 of 2268 by alcan

May 24, 2004 (3:28 am)

http://www.kyb.com/shocks2.html

#1304 of 2268 Re: [alcan #1300] by jwally

May 24, 2004 (8:51 pm)

Replying to: alcan (May 17, 2004 2:30 am)
Where are the coil towers located? I have notice some white marks on plug wires where plugs crossed each other.considering i did the torque converter clutch test by tapping brakes at 50 and 60 mph i noticed rpm's rise and shuttering stops would it seem more likely transmission needs rebuilt?what does TCC TEST MEAN?WORKING PROPERLY?

Messages Page 131 of 228

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