My 1971 Pontiac Lemans 350 starts and runs great in park. As soon as I shift the Turbo 350 transmission into gear, the engine will quickly fade and stall. I can power brake to keep rpm up and get the car moving. Plus it shifts a bit hard from 1 to 2, could this be a vacuum modulator issue?

55

Asked by Apr 18, 2015 at 08:24 PM about the 1971 Pontiac Le Mans

Question type: Maintenance & Repair

2 Answers

24,345

or a torque converter clutch.

20,235

more like a vacuum problem, intake gaskets or vac hose leaking

Your Answer

Add photo

Related Questions

Search Pontiac Le Mans Questions

Pontiac Le Mans Experts

#1 Rucko
Rucko
Reputation 440
#2 Js08016
Js08016
Reputation 180
#3 Daniel Perron
Daniel Perron
Reputation 160
View All

Related Models For Sale

Used Pontiac GTO
5 Great Deals out of 452 listings starting at $6,000
Used Chevrolet Camaro
226 Great Deals out of 30,943 listings starting at $1,217
Used Pontiac Firebird
12 Great Deals out of 724 listings starting at $3,990
Used Pontiac Bonneville
3 Great Deals out of 533 listings starting at $1,799
Used Pontiac Grand Prix
30 Great Deals out of 2,871 listings starting at $900
Used Ford Mustang
472 Great Deals out of 45,735 listings starting at $1,999
Used Chevrolet Impala
521 Great Deals out of 31,726 listings starting at $1,450
Used Oldsmobile Cutlass
123 listings starting at $1,600
Used Dodge Challenger
184 Great Deals out of 24,169 listings starting at $8,800
Used Chevrolet Monte Carlo
21 Great Deals out of 1,408 listings starting at $1,995

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.