My 93 Bonneville shudders as I turn corners....and this morning as I wasin the turning lane going right at about 40 mph it shuddered and cut cranked back up again and I made it to work.


Asked by Dec 10, 2013 at 05:56 PM about the 1993 Pontiac Bonneville 4 Dr SE Sedan

Question type: Maintenance & Repair

It did it again on the way home but did not cut off, but shuddered as if it would.

7 Answers

The good news Meshia is that you indeed make it to work. The bad news is that a 1993 does not have OBDII, the newer version of OBD or On Board Diagnostics, not available until 1996. Okay, we can work from there. You have a 1993 Pontiac Bonneville that GM set up for flash/pattern codes from the CEL (Check Engine Light) that actually is pretty good at diagnostics, not on the level off a 1996 or newer with OBDII but at least it's something to work with. Do you want to retrieve the fault codes yourself? If so, ok can do. But it's a long exploitation way too long to write out here unless you really want to leRN

1 of 1 people found this helpful.

sorry not exploitation..explanation..geez I'm not in to exploitation

1 of 1 people found this helpful.

Um sure....I guess....I know it doesnt happen if I brake or come to a stop / stop sign and turn

Meshia let's go back a little bit. When you say 'shuddered' do you mean a shudder/vibration you can feel in the steering wheel, as if if feels like a front suspension or tire, brake, like you are driving on a really bumpy dirt road, and this happens only during turns but not when driving straight?... or do you mean the engine itself shudders as if it is not running right, misfire,. We may have more than one issue here. Thanks~~David

1 of 1 people found this helpful.

The car itself shudders like its going to cut off.....its an old car I know. Ive had the transmission replaced 1 year ago last January.And the intake valve (?) Replaced 2 mnths ago because my radiator was running hot.


Check the simple stuff. You have a rough-running engine. Turning and coming to a stop, or idling, are when this becomes apparent. When was the last time the car was tuned up? There are a few electronic components that can cause a rough idle. The Mass Air sensor, Crankshaft position sensor, many more can all cause this problem. If you are near Pep Boys, they will read the trouble code for you, for free, and explain what the problem is. Of course, they want to fix it also, but that's your decision. Good luck!

1 of 1 people found this helpful.

Thank you all for answering

2 of 2 people found this helpful.

Your Answer

Add photo

Related Questions


Looking for a Used Bonneville in your area?

CarGurus has 511 nationwide Bonneville listings starting at $1,799.


Search Pontiac Bonneville Questions

Pontiac Bonneville Experts

#1 ticklemedaly
Reputation 380
#2 Js08016
Reputation 360
#2 dandyoun
Reputation 360
View All

Related Models For Sale

Used Pontiac Grand Prix
31 Great Deals out of 2,863 listings starting at $1,600
Used Chevrolet Impala
589 Great Deals out of 34,066 listings starting at $899
Used Chevrolet Camaro
244 Great Deals out of 31,183 listings starting at $369
Used Pontiac Firebird
4 Great Deals out of 768 listings starting at $1,791
Used Pontiac Grand Am
1,183 listings starting at $1,599
Used Buick LeSabre
20 Great Deals out of 1,919 listings starting at $1,000
Used Ford Mustang
543 Great Deals out of 45,840 listings starting at $1,999
Used Honda Accord
941 Great Deals out of 77,703 listings starting at $899

Used Cars For Sale

2005 Pontiac Bonneville For Sale
83 listings starting at $3,495
2004 Pontiac Bonneville For Sale
3 Great Deals out of 66 listings starting at $1,799

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.