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My 2007 is having a hard time starting on the first crank
My 2007 monte is having a hard time starting on the first crank when cold with e85. Never had this problem before with e85 and fires right up on gasoline.… read more
GM Bob
GM Bob
Automobile Technician
High School or GED
1,103 satisfied customers
Here's one for ya, 2002 Pontiac Bonneville SSEI, just got
2002 Pontiac Bonneville SSEI, just got the car old owners had enough, I have 300 and 463 codes and 463 is tank is empty gas gauge bounces full empty half, anyways, car starts like a new one, has a very light tick was a lot worse when I first got it, I have installed new plugs Ac delco 41-902 & wires, didn't do anything and two plugs were cracked one badly, back to symptoms, I can rev it up to 3,000rpm and sounds awesome running great but anything past that sounds like engine is gonna explode, also absolutely"no" power when in gear can't get it to rev past 2,000 rpm that is no joke , gotta baby it ever so gently to get to 45-55 and that's after two miles or more, car has 153k on it owner said his daughter took it to school on way home acting up next morning run good till after school and is where it is now, I have squirted water listening for air leaks, sprayed carb cleaner over entire thing and used propane so I'm ruling out vacuum leak, I have an in line spark checker you just lay on wire and shows spark and now seems great , to no effect , pulled egr off made a block off plate for it just to see and that had zero effect, I had cleared codes once before and it had 403 code meaning egr open or shut I cleaned it looked like someone been here already, next game plan is fuel filter then pressure, exhaust is eye burning to say the least so really don't think this is it, catalytic is another story, from the tip of outside cat its 300+ but 8-12 " inches from opening it drops over a hundred degrees sometimes 150 degrees (have a temp checker) basically there's 18inches of pipe between cat and half muffler looking thing and temps going into muffler barely at 100 degrees, beat the hell out of it but sounds hollow one small chunk rolling around but isn't very big by sounds of it and will bounces back to cat while running so I think it isn't what's possible to plug it, very little exhaust coming out pipe though...Gonna pop a couple holes in it to see anyways, any help would be swell!?… read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
5,527 satisfied customers
I have a hose on top/back side of manifold that isnt
i have a hose on top/back side of manifold that isnt connected to anything on the other side and car wont stay running after changing spark ugs and wires. where does the other end of this hose go? … read more
George H.
George H.
Technician
Associate Degree
19,121 satisfied customers
Z71 Chevy Taho 2006 Wont start. Ive ruled out electrical and
Z71 Chevy Taho 2006 Wont start. Ive ruled out electrical and Sprayed ether into intake and it started for only one second and sputterd off like its not getting fuel? … read more
Jared D
Jared D
Shop Supervisor
Bachelor's
2,394 satisfied customers
I have a 2007 Chevrolet Suburban 2500 with the 6.0 engine.
I have a 2007 Chevrolet Suburban 2500 with the 6.0 engine. It has begun in the last few weeks to intermittently overcrank after the engine has started. This morning it seemed to just crank along time … read more
GM Bob
GM Bob
Automobile Technician
High School or GED
1,103 satisfied customers
My emissions light came on this evening -- I am on vacation
My emissions light came on this evening -- I am on vacation with about four days and one thousand miles of driving left to do. Am I safe to keep driving cautiously until I get home, or do I need to go… read more
Roy
Roy
shop foreman
Associate Degree
4,596 satisfied customers
bad thing for and/or in gasoline, maybe its ok, maybe not..additive
Before we "close off" forever (maybe not!), I just learned of another bad thing for and/or in gasoline, maybe its ok, maybe not? I read where the intentions of this additive were meant well, but after… read more
Bill
Bill
Foreman/Team Leader
Vocational, Technical or Trade Scho
1,775 satisfied customers
Beach trip pulling fifth wheel camper..10 minutes..wont start
just got back from beach trip pulling fifth wheel camper. we pulled in drive to unload. i turned engine off maybe 10 minutes, truck started and when i started to back up engine quit and won't start. e… read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
15,756 satisfied customers
92 Chevy Suburban: 4x4 5.2L..wont start..air filter..Passenger
Have a '92 Chevy Suburban 4x4 5.2L - won't start - engine turns over great, plenty of spark - no fuel getting to engine. Have changed fuel filter & general tune-up (oil & filter, air filter, plugs, di… read more
Virtual Wrench
Virtual Wrench
Owner of LJ Auto Repair 37 years
Associate Degree
14,398 satisfied customers
I just purchased a 2006 chevy avalanche. It is getting 9 mpg.
I just purchased a 2006 chevy avalanche. It is getting 9 mpg. Is there a real way to get better gas mileage? Optional Information: 2006 Chevrolet Avalanche 5.3 Vortec Already Tried: Nothing. I do not … read more
goodwrench9124
goodwrench9124
Lead Tech/ Shop Leader
Vocational, Technical or Trade Scho
3,392 satisfied customers
I have an 08 Yukon Denali with 6.2 liter engine. Gas mileage
I have an "08" Yukon Denali with 6.2 liter engine. Gas mileage is bad. Can my engine be reprogrammed by the dealer to incorporate GM's "Active Fuel Management". This system allows the engine to run on… read more
goodwrench9124
goodwrench9124
Lead Tech/ Shop Leader
Vocational, Technical or Trade Scho
3,392 satisfied customers
1994 Chevy astro: What can I do to get the most mirage..v6..mechanical
What can I do to get the most milage out of my 1994 Chevy astro van with the standard 4.3lt v6. Please include even mechanical and computer changes. Thank you,… read more
goodwrench9124
goodwrench9124
Lead Tech/ Shop Leader
Vocational, Technical or Trade Scho
3,392 satisfied customers
2005 Tahoe LT: with 68,000 mi and my gas mileage is deteriorating
I have a 2005 Tahoe LT 5.3 engine with 68,000 mi and my gas mileage is deteriorating. What can I do to correct this problem… read more
goodwrench9124
goodwrench9124
Lead Tech/ Shop Leader
Vocational, Technical or Trade Scho
3,392 satisfied customers
Mileage..sub 7 mpg with no trailer or load..check engine light
I have a 2001 2500HD with a 8.1 litre engine. Heres my problem: Obviously with the 4:10 rear gear ratio I dont expect to get great mileage, but lately i have been getting sub 7 mpg with no trailer or … read more
goodwrench9124
goodwrench9124
Lead Tech/ Shop Leader
Vocational, Technical or Trade Scho
3,392 satisfied customers
O2..map sensor..the extra oxygen in the exhaust, so the computer wont
I am cosidering hho gas to supliment my gas mileage, can I use the o2 extenders or should I consider the map sensor adjustor to compensate for the extra oxygen in the exhaust, so the computer wont ric… read more
goodwrench9124
goodwrench9124
Lead Tech/ Shop Leader
Vocational, Technical or Trade Scho
3,392 satisfied customers
Silverado 1500: 4x4..trailer..cruise control..overdrive into 2nd gear
I have an 06 Silverado 1500, 5.3, auto, 4x4, w/3:73 rears. I typically pull a loaded 5500 lb trailer w/an off-road truck loaded on it in the tow/haul mode with the cruise control set between 70 and 75… read more
Matt
Matt
Shop Owner / Technician
Vocational, Technical or Trade Scho
44 satisfied customers
1988 Chevy: 000 miles..timing changes by about 7 degrees..sluggish
My 1988 Chevy S-10 has 15,000 miles on a rebuilt engine, a 2.5 liter with a new, rebuilt TBI. When it runs properly, it runs beautifully. But frequently the timing changes by about 7 degrees, causing … read more
frank
frank
Vocational, Technical or Trade Scho
1,892 satisfied customers
1993 chevy lumina: hunts revs..diagnostic..o2 sensor..ecm bad
Hello; I have a 1993 chevy lumina engine code T 3.1 .. The engine runs rough at idle, hunts revs up and down .. I took it to a pro care and and had them do a diagnostic on it they said two injectors b… read more
Chevy man
Chevy man
Mastertech
Vocational, Technical or Trade Scho
2,650 satisfied customers
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