I have a 1993 Olds Bravada with a Vortec V6 engine it has 163000 miles on it, I have taken it in for a diagnostic on why it takes off very slow sometimes, no codes come up showing problems, all the fluids are full, I have had the fuel injection system replaced from the fuel pump to the injectors as well as the whole exaust, all the vacum lines are new, the trans has been serviced and it had a recent tune up, so what else could be wrong with it.
Why does my Bravada take off so slow on 1993 Oldsmobile Bravada
by CalNinja in Jackson, CA on March 06, 2011
3 answers 4 comments
ANSWER by Pvt-Public on March 06, 2011
probably because it is an 18 year, 163k mile old, mini-van. You really should consider yourself lucky this "van "even runs. There is a reason you don't see many of them on the road any more.
Thanks for your response, but it's not a mini-van it's 4wd suv and their is about 6 of them in this little tiny town I live in that are the same year as mine and more likely have more miles then mine, the only difference is I keep my SUV on a regular service scheldule.
ANSWER by Precision Automotive Service on March 06, 2011
Does it accelerate slowly or just feel like it lacks power? Sounds like it could have a timing advance issue. How does it run when it is up to highway speeds?
Thank you for your response, it feel's like it lacks power, I had a compression test done on vehicle by a GM dealearship back east and then again in Ca. by a repair shop in Jackson Ca. both place told me that they could not find any problem's, that it could easily go another 100000 miles, at highway speed it does good it's just lacks pickup speed on takeoff at a stand still but sometimes it's fine at takeoff it does not make any since.
COMMENT by Precision Automotive Service on March 06, 2011
Did the diagnostic testing and inspection reveal anything besides no codes and good compression. Lack of power and acceleration can be caused by many different components or systems. Timing advance, restriction in the exhaust system, low or reduced fuel pressure or volume, low ignition voltage are all possibilities along with a slough of others. I would get a referral for a good shop in your area and let them run another diag test or take it back to the shop you already took it to (and I assume paid for the testing) and ask them to road test it and ask if they'd like another crack at it. If you can find no solutions in Jackson, consider coming to Sacramento to my shop. My diagnostic test is $125 for a complete checkout of the powertrain and emissions system.
ANSWER by Visitor on April 06, 2011
My 1993 Olds Bravada had the same issue. It ended up that changing the oxygen sensor on it fixed the issue and I have an awsome truck now.
COMMENT by Visitor on April 06, 2011
Thank you, I will try that and hopefully it will work.