My car kinda rumbles or shakes to start

Asked by Sep 20, 2016 at 07:26 PM about the 2003 Pontiac Grand Am

Question type: General

I just put a new fuil pump and spark plugs and
wires on and it is still rumble when I try to start it

2 Answers

16,155

Shakes like it has bad motor mounts?

1 of 1 people found this helpful.

iac or coil planium top or a bad cat or a timing chain has went bad cousing it to stall out shack and rattle at stops but runs perfect while driving it finding out the cat will plug up and glow hot red at the back side of the cat but the back pressure from that being plugged up will cause back pressure to the engine causing the engine to spin backwards that then it streched the timing chain and causing the timing chain to skip a tooth or 2 ahead of time throwing the timing off on your engine i just went through all this this past week i kicked the cat out the exhaust system what that means is i cut the stupid cat out put a straight pipe in place of it cost me about 50.00 dollars with the clamps and hot heat weld putty and new timing chain set with guides and as good as new again those cats can cause a bad fire can blow up your car i changed it to a straight pipe and clamps and heat weld putty around the joints and good as new and o2 sensors work with this god bless my master degree in mechanics pays off . they do this on race cars too and on certain other vehicles as well . cats are no good but if you want to put a replacement one in go ahead you can get a replacement cat for 100.00 dollars ok have a nice day.

Your Answer

Add photo

Related Questions

  • in order for car to turn on the engin shakes real hard 8 answers

    im wondering if im damaging my car by driving it. I can only get one good start out of it first thing in the morning. after that i can turn the key and u hear the poping going and the sound like its...

    2001 Pontiac Grand Am GT Coupe

    -

    General

  • 1998 pontiac grand am se 2.4l engine is skipping and shaking? 7 answers

    My car is shaking and jumping and i can not figure out what is wrong with it. It is throwing out a P0300, which is a multiple misfire. I have changed the following parts. Sensors: camshaft, crankshaft...

    1998 Pontiac Grand Am 4 Dr SE Sedan

    -

    General

  • whats wrong with my car 1 answer

    My car was driving perfectly I went up a hill a steep one and all of a sudden my car started shaking and jerking side to side and I was at a red light and I had to hurry up and run it because the ...

    1999 Pontiac Grand Am 4 Dr SE Sedan

    -

    General

  • My car won't atart 3 answers

    My car will not start I have been trying to get it to start for 3 days now an nothing

    2005 Pontiac Grand Am

    -

    General

  • I AM SO DISAPPOINTED...CAR WAS SHAKING RUMBLING CUT OFF IN MIDDLE OF ROAD .... 3 answers

    BEFORE I GOT THE COIL ASSEMBLY, SPARK PLUG AND BOOTS, AND BOTH IGNITION COILS REPAIRED ALL PARTS WERE ORDERED IN SO I WAS POSITIVE THEY WERE BRAND NEW... MY CAR WAS SHAKING CUTS OFF ... I THEN REC...

    2001 Pontiac Grand Am SE1

    -

    Maintenance & Repair

Search Pontiac Grand Am Questions

Pontiac Grand Am Experts

#1 tenspeed
tenspeed
Reputation 7,610
#2 John Saffrahn
John Saffrahn
Reputation 1,600
#3 Tom Demyan
Tom Demyan
Reputation 1,410
View All

Related Models For Sale

Used Pontiac Grand Prix
3 Great Deals out of 62 listings starting at $1,800
Used Chevrolet Impala
34 Great Deals out of 884 listings starting at $799
Used Chevrolet Camaro
984 listings starting at $13,999
Used Ford Mustang
1,334 listings starting at $5,980
Used Chevrolet Malibu
80 Great Deals out of 2,426 listings starting at $2,995
Used Honda Accord
96 Great Deals out of 1,243 listings starting at $1,495
Used Nissan Altima
73 Great Deals out of 1,205 listings starting at $691
Used Toyota Camry
53 Great Deals out of 1,641 listings starting at $800
Used Honda Civic
344 Great Deals out of 4,847 listings starting at $1,750

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.