Mild engine misfire and hard start

Tiny
ARTRAPS
  • MEMBER
  • 1999 BUICK RIVIERA
  • 140,000 MILES
Conditions are: cruise control at 60 MPH, RPM at 1500. When on a level grade and changing to a mild increase in grade (3% or so) engine will miss a couple of times then smooth out. The same miss occurs when reaching the top of the grade when it levels off. So it's something that has to do with the throttle's initial increase or decrease. With volt meter checked TPS (including tapping on it); idle bypass valve, ignition coil pack, CPM, Mass Airflow Sensor cleaned, new GM spark plug wires, new NGK plugs.

Engine starts immediately on the second try and rarely on the first try (4 seconds crank)
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Friday, August 9th, 2013 AT 10:40 AM

3 Replies

Tiny
CJ MEDEVAC
  • EXPERT
THIS WAS MY EXPERIENCE WITH THE WIFE'S ESCAPE

(I'D MUCH RATHER DEAL WITH MY JEEPS !).....SEE "MY ANSWER" IN THIS LINK

http://www.2carpros.com/questions/2004-ford-territory-misfiring?assign=yes#reply

MAYBE YOU HAVEN'T QUITE DONE, ALL I DID FRUITLESSLY!

WHAT REGION OF THE COUNTRY ARE YOU IN?....MIGHT BE ABLE TO SHARE TIPS ON SOME PARTS COST SAVINGS!

THE MEDIC
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Friday, August 9th, 2013 AT 2:23 PM
Tiny
MAXIMILIAM
  • ADMIN
Thanks CJ,

I'm in Pennsylvania south of Pittsburgh.
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Saturday, August 10th, 2013 AT 12:09 AM
Tiny
CJ MEDEVAC
  • EXPERT
ROGER THAT!

THIS SHOULD WORK FOR YOU....."ADVANCE AUTO PARTS" IS ONE OF YOUR STORES.....READ THIS LINK

http://www.2carpros.com/questions/2001-dodge-neon-milage-just-want-put-fliuds-their-locations

THERE ARE 2 REALLY GOOD CODES THAT WORK FOR THEM NOW (FORGET THE ONE THEY POST AT THE TOP OF THEIR SITE)

DEPENDING ON YOUR PURCHASE SITUATION......

"TRT41" WILL KNOCK OFF $40 OFF OF A PURCHASE OVER $100

"A124" WILL KNOCK OFF $10 ON A OVER $30.......$25 ON A OVER $70.....$40 ON A OVER $110 PURCHASE ONLINE........THEN CHOOSE P/U AT STORE, BESIDE EACH ITEM IN THE "CHECKOUT" IF IT IS IN STOCK

I DO NOT KNOW WHEN THESE EXPIRE....."A124" HAS BEEN RACKING ALL OF US UP SOME BIG SAVINGS DOWN HERE IN S.C. (THE PROMISED LAND), FOR QUITE SOME TIME NOW.......THEY HATE TO SEE US COME IN!

............ANY PROGRESS ON YOUR RIG?

LET ME KNOW IF I'M DOIN' YOU SOME GOOD

NEED JEEP........RELIABLE......BEST-US BUDDY....LONGEVITY.........BABE MAGNET!

http://www.2carpros.com/questions/2003-ford-500-light-on-dash-half-car-screw-throuhg-help

THE MEDIC
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Saturday, August 10th, 2013 AT 10:31 AM

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