what will cause a 94 ford thunderbird sc not to go over 35 mph?

10

Asked by Dec 24, 2012 at 01:59 PM about the 1994 Ford Thunderbird SC

Question type: Maintenance & Repair

mt  car will not go over 35 mph and i havent the slightest idea of why it wont go normal speed

5 Answers

125

Is it shifting from 2nd to 3rd?

8,585

well either the gears wont shift, due to anything from transmission malfunction, vacuum leak, or sc, super charger???? check engine light? any other issues before it happened? Any sensor can prevent it as well, so go to napa/advanced/chain auto store for a free diagnosis where they scan the codes of the computer to narrow down possibilities, dont buy anything then, unless there is a single specific sensor, i am thinking map/maf...

1 out of 1 people think this is helpful.
10

the check engine light is not and it doesnt shift into 3rd

1 out of 1 people think this is helpful.
335

Bad transmission, or bad sensor.

6,325

Without actually driving the car or not knowing the condition or mileage on the car or the car's history., Here's my guess. I think it could be your catalytic convertor is plugged up. This can happen after 160K miles as they actually wearout after that and usually only last for that many miles..My neighbor had a Chevy Blazer with 165K miles on it that all of a sudden wouldn't go over 35 mph. I suggested that it was the convertor that was plugged up, so he went to Midas muffler shop and they agreed with my suggestion. They changed out the convertor for a new one and that fixed the problem instantly. If it starts to shake and shimmy right before 35 mph, then it's probably the convertor. If it runs ok but just won't go over 35, then maybe it's the transmission but it sounds to me like something is just plugged up. Kenny/MrBlueOval

Your Answer

Add photo

Related Questions

  • Problems with my thunderbird. 2 answers

    So I bought this thunderbird about 2 months ago. Well here's what's wrong with it. Everytime I hit the gas the engine cuts off for a second then it will start moving. Sometimes the car dies when si...

    1995 Ford Thunderbird LX

    -

    Maintenance & Repair

  • 68 thunderbird ,oil pan wont come out 87 answers

    i pulled the starter,oil filter,oil pump,fan,shroud,turned the crank to clear pan,,stabilizer bar,belts.raised engine 1.4 inches.it wont come out whats the deal

    1968 Ford Thunderbird

    -

    Maintenance & Repair

  • when i turn on keyswitch a ornge arrow comes on when cranked goes off,dont come on until car hits 4 answers

    100 mph. my sc is auto so i know it cant Be a shift light unless my car will run that fast in 1st .shift patern is 1 D OD N R P. THE ORANGE LIGHT AN ARROW POINTING UP ON TACK SIDE.LIKE I SAID I CAN BE...

    1989 Ford Thunderbird

    -

    Maintenance & Repair

  • odometer moves and speedometer at 120 mph while in park! for t-bird 1991 5 answers

    odometer moves and speedometer at 120 mph while in park! just started. no check engine light, no rpm fluctuations, and so far no sputtering or stalling? whats going on? and is it safe to drive?

    1991 Ford Thunderbird

    -

    Maintenance & Repair

  • has any one put a 4spped in a 72 t bird 1 answer

    I have a 72 thunderbird with a 429 I would like to put a 4 or 5 speed dose any one have any ideas ???? Thanks Dave

    1972 Ford Thunderbird

    -

    Car Customization

Thunderbird

Looking for a Used Thunderbird in your area?

CarGurus has 1,098 nationwide Thunderbird listings starting at $6,000.

ZIP:

Search Ford Thunderbird Questions

Ford Thunderbird Experts

#1 Larry Sturgis
Larry Sturgis
Reputation 1,510
#2 Tom Demyan
Tom Demyan
Reputation 1,460
#3 tennisshoes
tennisshoes
Reputation 1,160
View All

Related Models For Sale

Used Ford Mustang
309 Great Deals out of 45,645 listings starting at $2,200
Used Chevrolet Corvette
118 Great Deals out of 20,752 listings starting at $3,499
Used Chevrolet Camaro
142 Great Deals out of 35,647 listings starting at $1,995
Used Ford F-150
2,425 Great Deals out of 210,591 listings starting at $895
Used Mazda MX-5 Miata
34 Great Deals out of 4,948 listings starting at $2,300
Used Mercedes-Benz SL-Class
68 Great Deals out of 3,125 listings starting at $3,500
Used Chevrolet Impala
593 Great Deals out of 29,266 listings starting at $1,300
Used Pontiac Firebird
9 Great Deals out of 788 listings starting at $1,800
Used Jeep Wrangler
290 Great Deals out of 19,221 listings starting at $3,295
Used Mercury Cougar
212 listings
Used BMW 3 Series
1,114 Great Deals out of 35,756 listings starting at $900

Used Cars For Sale

2005 Ford Thunderbird For Sale
77 listings starting at $11,500
2004 Ford Thunderbird For Sale
3 Great Deals out of 156 listings starting at $8,950
2003 Ford Thunderbird For Sale
3 Great Deals out of 154 listings starting at $8,450
2002 Ford Thunderbird For Sale
12 Great Deals out of 312 listings starting at $6,000