1987 trans am (skips)

Richie Duncan
25

Asked by Richie Mar 12, 2012 at 07:43 PM about the Pontiac Trans Am

Question type: Maintenance & Repair

it starts to skip at around 55mph, and i was wonderin if the screw on the top of the carburetor had something to do with it because i turned it in a little bit and it seemed like it helped it but im not sure. does anybody know what that screw is for?

7 Answers

trip65
Not Active

need a little more info than that ...... there are several adjustment screws on a carb.

1 out of 1 people think this is helpful.
Richie Duncan
25

i think it is an air adjustment but im not sure. its directly on the top between the barrels on the carb. you adjust it with a flat head screwdriver.

trip65
Not Active

is it stock? rochester?

1 out of 1 people think this is helpful.
trip65
Not Active

ok after a little investigating your car stock should be a chevy engine with multi port fuel injection how long have you had this car?

1 out of 1 people think this is helpful.
TJMOOSEHEAD
55

so, what engine and carb is in you car? Is it a straight drive or auto.. has it been tuned up lately? Here's a scenerio (hope I spelled that right).. if it has not been tuned up lately - has old ignition parts - that could be a problem. When its in high gear and just loping along - developes an intermitting misfire - could be igniiton - like plugs, wires,etc... This is good check whether its carb or fuel injection..

Richie Duncan
25

its a stock rochester, 4 barrel. the car has a 305 in it. its automatic. it has new plugs and wires and oil. and could the skip be comin from the ignition module?

TJMOOSEHEAD
55

possible but not likely.. usually the module works or it don't how about the cap and rotor - have they been repalced? also the wires and plugs - could one of the wires have gotten on the manifold and burnt? also its possible a spark plug could have a crack in the ceremic portion if not properly installed with a spark plug socket. I've had this to happen once and drove me crazy trying to figure it out. the quality of the ignition parts also plays a part in this.. the cheaper the parts - the more likely the problems.. always use good ignition parts. not the absolute best (for a stock vehicle) - but middle of the road will work fine.. once all the ignition parts are verified to be ok - next check the carb - if its verified to be ok - not had any unnessary adjustments done to it - then look at the engine compression.. but 9 out of 10 times - intermitting misfire is in the ignition system..

Your Answer

Add photo

Related Questions

  • need fuel pump volume test specs (quarts per minute) 0n a 1997 firebird 3800 please 1 answer

    would shut off while driving in rain after dropping enough cylinders, I could see & hear wires arcing, & one tower on two different coils was not sparking. I pulled each coil & checked for 12 volts &...

    1997 Pontiac Firebird Trans Am

    -

    Maintenance & Repair

  • skipping in transmission 1 answer

    How to fix the skipping in transmission on my Aztek does anybody know how, or what the cost is to fix it?

    2003 Pontiac Aztek AWD

    -

    Maintenance & Repair

  • 97 Pontiac Trans Sport 18 answers

    Ok i just bot this vehicle and it runs like a champ. I am having a problem with the headlighs and dash lights and console lights all flickering. Also when i apply the brake or put the vehicle in r...

    1997 Pontiac Trans Sport 3 Dr SE Passenger Van Extended

    -

    Maintenance & Repair

  • why is my 96 Grand am slow to start and rough idling

    i have a 96 grand am with the 2.4l twin cam. When you first crank it it is very slow to crank and has a rough idle. when driving it is fine no skips and has all power. Fuel pump has been replaced.

    1996 Pontiac Grand Am 2 Dr SE Coupe

    -

    Maintenance & Repair

  • What do I do if the engine is skipping 2 answers

    Low speed skip in the engine

    1998 Volkswagen Golf 4 Dr GL Hatchback

    -

    Maintenance & Repair

Trans Am
Looking for a Used Trans Am in your area?
CarGurus has 77 nationwide Trans Am listings and the tools to find you a great deal.
ZIP:

Search Pontiac Trans Am Questions

Pontiac Trans Am Experts

#1 Norm Davis
Norm Davis
Reputation 140
#2 Rucko
Rucko
Reputation 100
#3 Js08016
Js08016
Reputation 90
View All

Related Models For Sale

Used Pontiac Firebird"
22 Great Deals out of 784 listings starting at $2,488
Used Chevrolet Camaro"
667 Great Deals out of 28,070 listings starting at $2,399
Used Ford Mustang"
1,072 Great Deals out of 23,464 listings starting at $950
Used Chevrolet Corvette"
391 Great Deals out of 9,814 listings starting at $3,500
Used Pontiac GTO"
13 Great Deals out of 375 listings starting at $7,700
Used Dodge Challenger"
331 Great Deals out of 15,698 listings starting at $13,398
Used Dodge Charger"
830 Great Deals out of 30,099 listings starting at $2,950
Used Chevrolet Monte Carlo"
76 Great Deals out of 2,347 listings starting at $1,250
Used Ford Mustang SVT Cobra"
14 Great Deals out of 276 listings starting at $5,500
Used Pontiac Grand Prix"
193 Great Deals out of 5,231 listings starting at $1,700
Used Pontiac Grand Am"
55 Great Deals out of 2,489 listings starting at $1,400
Used Jeep Wrangler"
865 Great Deals out of 41,655 listings starting at $1,800
Used Dodge Viper"
11 Great Deals out of 243 listings starting at $24,000
Used Chevrolet Impala"
1,756 Great Deals out of 55,004 listings starting at $999