I have a 1999 Grand Am, 160,000 miles. This problem seems to have started since getting colder outside and only after my car reaches normal operating tempature. When I accelerate from a stop or from a low speed, my car hesitates to accelerate and the only way to move is to press my gas pedal to the floor, at which point it will surge forward. As long as my foot is on the gas my car is okay, but once I coast and then try to accelerate again, it tends to stall out (but restarts right away). Also, it has been stalling out many times when turning a corner or pulling into a parking spot. I was told this could be the Oxygen sensor needing replaced. I was also told that my car is having an issue where it doesnt realize its running in cold weather (due to a bad sensor). Any ideas???
2007-01-25 08:22:55 · 5 answers · asked by Rikki-Tikki-Tavi 3 in Cars & Transportation ➔ Maintenance & Repairs
My car also passed when plugged into a tester, no codes.
2007-01-25 08:24:39 · update #1
Chech the spark plug abd wires. The wires maybe arching. Check the cap, rotor and the coil pack.
2007-01-25 09:05:29 · answer #1 · answered by ? 7 · 0⤊ 0⤋
I'd have the fuel filter changed, run 2 plastic (12 oz.) cans of Chevron Fuel injector cleaner into your gas tank first. If the problem persists take it to a Pontiac Dealer to have it hooked to their electronic engine analyzer. Your thought is important however, if it's bad the machine will find it. There is another possibility. Near your throttle body fuel injection there is a solenoid device which meters a measured amount of exhaust gas into the intake manifold while driving that unit could be sticking open. This device takes the place of the old EGR valves. Their may be an intake manifold leak also ( gasket seal) that causes real havoc. Good Luck. I wish I could help you more
2007-01-25 08:47:40 · answer #2 · answered by Country Boy 7 · 0⤊ 0⤋
Sounds more to me like a coolant temperature sensor problem.
Tough to guess however, but thats where my money is.
Sounds like the computer may be dumping fuel (running rich) due to a faulty coolant temperature sensor. Computer thinks engine temperature much colder and starts dumping fuel to compensate. Could also be a mass air flow sensor, but I'd bet on the coolant temperature sensor.
2007-01-25 11:24:17 · answer #3 · answered by Anonymous · 0⤊ 0⤋
It sounds like your throttle position sensor is bad. You should take it to a competent independent garage and have them check it out. If its the problem it is not an expensive part and quick to replace. Good luck.
2007-01-25 08:37:03 · answer #4 · answered by LANNY D F 1 · 0⤊ 0⤋
i'm large to work out you depended on the guy in penal complex to have worked on your automobile. Strike one. yet you have a Toyota now, Strike 2, and it grow to be owned by way of a jailbird, Strike 3 your out! --call me choose Judy, yet i might somewhat have a one proprietor Ford, than a defective pre-owned oriental automobile owned by way of a Jailbird.
2016-09-27 23:46:46 · answer #5 · answered by lichtenberger 4 · 0⤊ 0⤋