I have had the block changed out and many parts replaced, but i still get a shake and some bad smells when it is idleing at stops. Not only that after putting a new starter it still takes a while to start, but when i turn it off after just turning it on and turn it right back on it starts without a problem is there anyone who may know what is wrong with my truck? would an egr valve be the problem?
2007-03-13 09:41:52 · 8 answers · asked by SUPADAVE25 3 in Cars & Transportation ➔ Maintenance & Repairs
I HAVE NOW CHANGED THE EGR VALVE, SEEMED TO HAVE HELPED A LITTLE, IT DID NEED REPLACING AFTER I SAW THE OLD ONE, BUT I STILL HAVE A SHAKE, THE SPARK PLUGS ARE NEW, BUT COULD IT BE THE WIRES?
2007-03-15 10:05:28 · update #1
I HAVE NOW CHANGED THE EGR VALVE, SEEMED TO HAVE HELPED A LITTLE, IT DID NEED REPLACING AFTER I SAW THE OLD ONE, BUT I STILL HAVE A SHAKE, THE SPARK PLUGS ARE NEW, BUT COULD IT BE THE WIRES?
2007-03-15 10:05:56 · update #2
Does it take longer than usual to start if it has been sitting for awhile?If so may be fuel pressure regulator.If you have access to a fuel pressure gauge,start the truck and look at pressure,turn off truck and if preesure brops to 0 within A few minutes, i would suspect faulty regulator
2007-03-20 13:57:26 · answer #1 · answered by scott h 3 · 0⤊ 0⤋
Go to an Auto Parts store and get a spark plug wire tester.Test each wire one at a time while engine is running.You could have a bad wire and it may be at low idle that it acts up and smoothes out at higher rpms' Also check coil pack for ignition at each 'high tower' this is where the plug wire attaches to get ignition spark.If everything is OK, check for engine compression, you could have a weak cylinder/s
2007-03-20 20:44:08 · answer #2 · answered by tturbod2001 4 · 0⤊ 0⤋
This is a tough one. I would start by giving it a complete tune up. Get a book on it and start diagnosing different parts such as furl pressures, oil pressures. Very likely that bad smell is a smell like rotten eggs. Which says its a fuel problem. Its hard to know for sure. But with the tune up and concentrating on the fuel problems such as pressure flow...you'll most likely find your problem is in there. Good luck. You can never go wrong giving your car a complete turn up anyways.
2007-03-18 13:13:51 · answer #3 · answered by Your Asking Me? 4 · 0⤊ 0⤋
My car used to do the same thing, check the engine mounts and make sure they are the right size for the engine.
2007-03-13 16:44:58 · answer #4 · answered by AlphaTango 2 · 0⤊ 0⤋
sounds like a fuel pump. check your fuel pressure. egr is possible , but mass air flow sensor is more likely if fuel pressure checks good
2007-03-13 16:49:16 · answer #5 · answered by malemute1 4 · 0⤊ 0⤋
im not sure but go to the car dealer ship for them to check it out.
2007-03-21 13:17:53 · answer #6 · answered by jayelle jewel 2 · 0⤊ 0⤋
I'm leaning towards M.A.P. sensor, take it to Chevy and let them check it.
2007-03-18 07:18:07 · answer #7 · answered by nbr660 6 · 0⤊ 0⤋
sounds like a tune-up problem
2007-03-13 22:33:34 · answer #8 · answered by shefixescars 4 · 0⤊ 0⤋