Question about 2001 Isuzu Trooper

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Timing belt broke while driving. No compression in two cylinders, valves either bent or broken. No owns manual, how many miles before replacing belt?

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80,000 mi. should replace belt.

Posted on Jul 06, 2010

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He timing belt broke. mechanic says replacement wont help because the car has over 200'000 miles on it. he says we need a new engine. do you agree?


Let's see what went on in the mechanic's head...

Timing belt broke. Likely that means your engine also has bent valves, because that's what happens when the timing belt breaks while the engine is running.

At 200k miles, likely the rings are pretty worn. Does it use much oil? How was the compression before the timing belt broke? Low?

At 200k miles, I'd be thinking that once it's open, replace the bearings, too. They're likely worn out.

Yeah, sounds like a replacement engine to me, too... Cheaper than doing everything to rebuild yours.

Oct 16, 2015 | 2008 Chrysler Pt Cruiser

1 Answer

OK.... 99 Mazda B2500 truck with a 2.3 engine. The timing belt broke, installed new timing belt. All timing marks are inline. Still will not start. Act like it a few times when turning over, but will not...


The description you give of your problem leads me to believe that you may have a bent valve. The way to check this problem is to do a compression test on each cylinder. You should have a compression of about 120-150 psi on all cylinders. If you come up on a cylinder with a much lower compression, this will tell you that a valve is bent. You will have to take the head off and have it serviced. This is what happens when timing belts break due to an extended time not being changed. Scheduled change times are at 60,000 miles. GOOD LUCK FRIEND.

Feb 21, 2015 | 1999 Mazda B2500

1 Answer

Determine why I have zero compression on all four cylinders


Have you put each cylinder at top dead center on compression
stroke & done a cylinder leak down test BEFORE ever starting
the motor,& is the timing belt still on & timed correctly?

Compression is relative to many things & not much use these
days,you got it or you don't

Nov 10, 2014 | 2005 Dodge Neon

1 Answer

How can you tell if you car is out of time


If the belt broke while the engine was running, it is very possible you have bent valves. A compression test would confirm it. Bent valves won't let the cylinder build compression. Without compression the air/fuel mixture won't burn and so no power is produced from that cylinder. I would recommend the compression test. If all cylinders are uniformly low, check your timing marks on the belt sprockets- you may have gotten the belt off a tooth or two.

Nov 04, 2014 | 1997 Chevrolet Cavalier

1 Answer

I have a 1992 mitsu eclipse 2.0l 16 valve, broken timing belt


it depends on car -some r protected against this because the piston is shaped so theres no contact with open valve-u can ask manufacturer. onother way is a compression chec-cylinders with bent valves hav no comp. and of course if u put a new belt on with the timing rite and it dozint start

Aug 23, 2009 | 1992 Mitsubishi Eclipse

1 Answer

My 2001 Daewoo Leganza with 108K miles on it suddenly stalled and would not restart immediately. A state trooper pushed me into a parking lot and the engine started but sounded like a washing machine. Got...


I had a similiar issue (2001 Leganza 112,000 miles) ran great then died. Broken timing belt also bent 2 exhaust valves. Bought the timing belt kit (includes water pump, tensioner and 2 pulleys), top end gasket set, 16 valve lifters (8 of mine had collapsed) and 2 valves on Ebay.I found all the procedure documentation posted on line andI did the job myself for about $325 in parts cost. Runs great now!

Moral of the story....change that damn timing belt at the recommended interval of 60,000 miles!

P.S. Your problem sound like broken teeth on the belt. I would suggest a timing belt replacment and then a compression check of a all cylinders to see if any valves were bent - Good Luck!

Jul 08, 2009 | 1999 Daewoo Lanos

1 Answer

Engine has no compression


when the timing belt broke it also bent the valves,hence the broken rocker arm. pull the head and see the valves are bent

Apr 09, 2009 | 2002 Mitsubishi Lancer

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