English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

I have a 351C 2V in a 69 mustang. It willl start with just the turn of the key, you dont have to give it gas or anything sounds great, but when you put it in reverse or drive the idol goes way down and it dies unless you give it lost of gas. It has an automatic transmission. What might be wrong. I just bought the car and when i bought it was sitting for like 3 years all i did was replace the gas tank and put fresh gas in it and set the timing by hand & sound while in park. I have done the basic tune up and such

2007-04-26 04:42:46 · 5 answers · asked by Alex K 1 in Cars & Transportation Maintenance & Repairs

5 answers

That carb has an anti dieseling solenoid on it. It is on the side of the carb that has the linkage on it. It is about the size of a half dollar, 3 inches long and there is a wire coming out of it. This solenoid allows the throttle plates to close more when the key is turned off so the engine does not do that annoying chugging that is called dieseling. Check this by having some one turn the key on and off while you watch it. A plunger should come out when you turn on the key opening the throttle slightly and retract when you turn off the key. If this is operating try turning the idle up slightly. Setting the timing by ear is not usually a good idea and if the carb had old gas sitting in it for those 3 years it probably will need a rebuild. Those older motorcraft carbs are one of the easiest there is to rebuild. Check and make sure your vacuum and centrifugal advance is working. You can check vacuum adv. by attaching a section of vac. line to the dist. and sucking on the other end of the hose. The plate with the points on it should move when you do this. Grab the rotor and twist it. If it moves and springs back the centrifugal adv. is working. I would have to check but I think your car should idle at around 850 RPM.

2007-04-26 10:40:20 · answer #1 · answered by dirk d 3 · 0 0

Ummmmmm........triky!!! Uhh, maybe you are running to lean on the carburator. Not enough gas is gettin in the motor. The car does not require a lot of fuel when it is just sitting in idol. But when you shift the Stang in gear, you are making the engine work harder, and if the carb is not supplying enough fuel to the motor, then it will sputter, or die. Thats my guess......good luck, and sounds like a hell of a nice car!!

2007-04-26 04:52:43 · answer #2 · answered by Anonymous · 0 0

You set the timing by hand and sound? What do you expect when you ignore the right way of doing things.

2007-04-26 11:14:24 · answer #3 · answered by Nomadd 7 · 0 0

My dad's pickup did something similar. It was just fuel filter. Check the easy stuff first.

2007-04-26 05:04:24 · answer #4 · answered by kdog 4 · 0 0

It is possible the torque converter is froze up, if it sat that long...

Contrary to some beliefs, it is not the transmission that "slips" when in gear, it is the torque converter...

2007-04-26 04:58:01 · answer #5 · answered by Michael B 6 · 0 1

fedest.com, questions and answers