Question about 2005 GMC Sierra

1 Answer

My timing belt snapped and bent all of my valves, ive got new valves groung in and the engine is now running spot on, for some reason the engine management light is on and stays on when the engines running. any ideas y?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,098 Answers

Hi

It sounds like maybe a sensor has been left unplugged, but to be fair any engine work can make them come on, it might be worth running it for 500 or so miles see if it goes off, if not you may have to get it on the daignostic machine. I wouldnt worry about it though modern cars are just made to tempt us into paying the dealer.

Regards
Dan

Posted on Nov 08, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Jumped time


A blast from the past (fav. movie)
i love caps, snaps me back to my first home computer (Northstar z80)
and my silly ASR33, printing terminal, caps only, flash ! im there....
misfires on all 6 cylinders. if patient,.
what car? what engine? what year?
1150 AFR bad.
1346 VVT says, cam is bouncing like MAD (DEVIATIONS) bank1
1349 VVT frozen, means it can change it ,but how could it if it bounces. bank 1
1351 VVT Sensor Range/Performance Problem (Bank 2)

here is my guess , your engine is????
2.5,3.0,3.3,3.4,4.0lilter engines,

new belt ,why old one snapped or shredded? or worse slipped?
my guess, bad belt setup, not timed right. or bad tensioner. bad idlers, or
or bad VVT parts, or bent head valves.

the V6 may be interference, and TOY dont say, but Gates lists most 96 and newer as Interference...engines.
i will assume it is (this is 1st deal with me, as im ,FIRST do no HARM"
and these engines , what do i do?
i do a leakdown test, just after the belt is replaced and tensioned, turning engine by hand.
if the leak down test FAILS the belt snapped and the valves did hit.
this i do everytime, it takes me, what 30 more minutes?
this act prevents further damage to head and pistons and rod bearing.
the damage can cascade fast to needing a new engine. now..
IMO, good luck.

Jan 02, 2014 | Toyota Cars & Trucks

2 Answers

Timing belt broke while driving will there be more damage ? it's a 1990 ford escort lx hatchback


All really depends how fast you was going when it snapped, the best thing to do is try turning the engine over slowly by hand to see if it moves freely and nothing is banging or knocking, if that is successful then you can try and just put a new belt on and see if it fires up and runs smooth,, but to be honest the chances of doing internal damage is imminent, could be cracked head bent valves ect but i would try the belt first before you start dismantling anything
Hope this helps
Steve

Mar 02, 2011 | 1990 Ford Escort

1 Answer

My timing belt snapped and I took it to a mechanic. he said that the belt snap the piston head and the bent the valves. I am wanting second opinion, and would like to know if the timing belt is connected...


The pistons will hit and bend the valves if the timing belt snaps because they are very close.The alternator does not connect to the timing belt, there is a separate belt that runs the alternator.

Dec 17, 2010 | 1987 Nissan King Cab

2 Answers

Vw lt46 1998 would it damage valves if timing belt


yes it will and most likely put a hole in the piston and snap the cam shaft if the engine is doing any more than idle speed, if it breaks at idle you may be lucky and just get away with a few bent valves but if im honest ive never seen anyone be lucky with one the normaly require a new engine. also worth changing the water pump at the same time as these do seize and will snap the new cam belt ! the only belt you can get away with leaving is the pump belt if this breaks no damage is caused the engine will just cut out ! however you will need to pretty much remove it after fitting a cambelt to set the timing so its pretty pointless no to change it

Apr 15, 2010 | 1997 Volkswagen Eurovan

2 Answers

Timing belt snapped


hi from uk the cambelt timing marks for accent 1.3/1.5 petrol are as follows= the cam cog has a hole drilling between the outer toothed and the central securing bolt this hole at TDC number 1 cyl is at top central and lines up with a V cut in the cyl head at rear of cog ? the crank cog at TDC number 1 cyl is a pop mark on both the cog and on thefront face of engine quite noticable ! these line up and are at approx 12 -30 pm when viewed fit new belt from crankcog in anticlockwise ie crank then cam then tensioner HOWEVER! if you are considering just replacing belt and tensioner ? be warned this engine is an interferance engine that is to say if belt fails whilst driving there may/will most probably be damage to the valves (bent) due to contact with pistons so would advise caution and suggest compression test all cyls after fitting new belt and tensioner and before rebuild completely once valves have bent they will not contact pistons again but you will have serious missfire/s and probably back fire up inlet manifold coupled with failing to start if engine is high milage ? consider removal of cyl head and check? de coke and replace damaged or best all valves then engine will have improved performance and more milesin future hope this helps

Nov 28, 2009 | 2001 Hyundai Accent

1 Answer

They are telling me i have a bent valve after replacing timing belt, i have a horriable roar sound and vibration. 3rd timing belt on this car being a female i am not trusting this solution w/o some other...


if the car was running fine before they put the timing belts on and then u have bent valve so that mean they have made a mistake off doing timing belt lined up cos due to bent valve ,the bent valve is usually happen when the timing belts snapped or some idiot made mistake wrong lined timing belt that would cause a bent valve ,hope that help u more understanding ,

Nov 07, 2009 | 2001 Kia Optima

3 Answers

Having changed the timing belt on my 307 2.0L petrol 2003 how do I re-align the valve timing. I have cam lock tools in place but there is no timing alignment on the crank pully - the pully and crank end...


hi i have a 307 2.0 petrol on a 05 plate how do i time up the bottom end of the engine it has no timming maksand its a free wheeling crank many thanks kev

Aug 21, 2009 | 2005 Peugeot 405

1 Answer

Timeing belt snapped


if timing belt snapped while engine was running valves are bent.number 1 cylinder is closest to these pulleys(gears).
the timing marks are for twin

7cc01fe.jpg

Jul 18, 2009 | 2002 Daewoo Lanos

1 Answer

Snapped cambelt


you mean the timing belt..well you can bent your valves if your not lucky mostly engine running with interferance ingine but yea if your timing belt snap it can damage your valve timing belt should be change at every 60k miles or suffer later..

Mar 31, 2009 | 2000 Daewoo Nubira

Not finding what you are looking for?
2005 GMC Sierra Logo

Related Topics:

34 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

75005 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...