Question about 1997 Chevrolet Blazer

1 Answer

I've got a '97 4.3 l. It ran great. Left the drive and died. It hasn't started since. I have good spark, 59lbs of preasure at the schrader valve on the fuel line. 110 to 122lbs of compression. It cranks like it has a hard spot (kind of like the timing is advanced too much) or super high compression. Been down the ignition switch road, all of the fuses are hot when and where they should. I have verified that the dist. is in the correct tooth on the compression stroke. It has new dist., plugs, cap, rotor, wires CAM and Crank sensors (from an earlier failure about 500 miles ago). The spark was intermitant and ended up throwing a code, so after looking at the coil this round, I noticed it was swollen and chared, so I put a new coil on. Good clean spark now. I have had a couple pretty good techs over to look at it, and they have left scratching thier heads, and try to avoid answering my calls now! Anything strike you as being familiar? I know this is a tough way to trouble shoot, but I'm grasping at straws. Thanks Rob from Indiana

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 189 Answers

Does it have a throttle body system or the spyder injection system? if regular throttle body dump some gas into the throttle body and see if it runs that way. if it runs it may be you have a bad computer grounding issue. check all wires grounded to the body for good connection. it could be a bad timing chain. Mabey it jumped a tooth or 2. burnt valves could also be a problem. cranking as if it has a hard spot could mean the firing order is off or it has jumped time, the possibilities are many, but hope this helps. good luck.

Posted on Jul 07, 2010


1 Suggested Answer

  • 2 Answers

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

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.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

2 Answers

97 regal ran out of gas, now wont start

That system is self priming, my first thought would be crud from the bottom of the tank got stirred up due to low fuel, and some small microns of dirt got sucked into the system and took out your fuel pump. Dirt naturally gets into everybody's tank, nothing you can do about it. My first try would be to cycle your key a few times to purge the system, not to many though as yes fuel injection can and will flood, if that happens to clear it out hold your foot to the floor till it starts then back to normal. Dont over rev you engine. Another thing to check is to remove the vacuum line from the fuel pressure regulator and smell it, if it smells like gas then the pressure regulator is bad, common issue.
But this wont keep it from starting only makes for a long start and lower fuel economy. Hope this helps.

Dec 19, 2017 | Cars & Trucks

2 Answers

Engine ran roughly then after shutdown wont start. I suspect fuel pump. filter good. And where is pump located?

How long since a tune-up? Check applicable trouble codes? What led you to the fuel pump as being your problem?
Usually if it cranks good but won't start, have a helper crank it, while you visually check for spark at the spark plugs. If spark everywhere, use a gage and check proper fuel pressure and fuel injector pulse.
Only crank the starter motor for a few seconds at a time, let it cool off, a little.
I do realize, sometimes visually checking for spark, can be a pain. Also, checking fuel pressure can be a pain if no Schrader valve, but, not impossible.
I'm not saying the pump can't be your problem, it could be, just check the other issues, also. The fuel pump is in the gas tank.

Apr 03, 2016 | 2001 Saturn L-Series

1 Answer

Have a 99 Buick lesabre it was leaking from oil sending.unit I replaced it and started it, it ran for 20 mins and died and won't re start? Any ideas..I read that maybe something kicked off fuel pump

Did you disconnect/remove any other wiring/sensor when changing the pressure switch? Try disconnecting the plug from the switch and retry starting. The oil pressure switch on some GM products worked as a backup for power supply to the fuel pump in case of relay failure but I don't think this model uses that system. It could just be coiencindental that this happened. You need to determine if there is no fuel supply or spark causing the no start. Remove a spark plug wire and hold it over a ground and crank the engine. If spark is there it is a fuel problem most likely. Remove cap on schrader valve on fuel rail and press valve to determine fuel pressure/supply. If one aspect is not there, you will have to diagnose further

Jul 01, 2015 | Buick Cars & Trucks

1 Answer

97 ford explorer limited changed fuel pump and filter and preasure relelay valve car still having starting issues can start cold and drive 20 mins and shut car of and it well have a hard time starting and...

I have a 98 explorer and had a similar problem. It wound up being bad spark plug wires. So I changed them and the spark plugs while I was at it. It ran great and still does. I'm not sure if that's your problem I would need more information.

Aug 27, 2013 | 1996 Ford Explorer

1 Answer

My 98 Cavalier was runnning great all the sudden every now and again it takes a couple turns to start, so i took it to Auto zone, they ran a test said everything looked good, and that I should change spark...

My guess would be two of the plug wires are on the wrong plugs.
The original problem could be a faulty fuel pump relay or the check valve in the fuel pump.

Sep 07, 2012 | 1998 Chevrolet Cavalier

1 Answer

Truck will start first thing in the morning run about 2 min then die, and will not re start. till next morning has plenty of gas and have replaced ignition switch already, after doing this ran great for a...

you must make sure the fuel is getting to motor, check the fuel preasure after it dies check preasure or try spraying starting fluid in throtlebody to see if it a fuel problem, if it doesnt start then check for spark at the plugs,the most common problems are fuelpumps or control modules going bad,

Jun 09, 2010 | 1986 Chevrolet S-10 Blazer

1 Answer

Battery is strong it ran great five hours ago car has 250k miles sounds like no fire

fuel pump might of gone bad, yes it can happen that fast , anyway start by checking for feul preasure and spark, start there ,good luck.

Oct 17, 2009 | 1997 Ford Mustang Cobra

1 Answer

My buick starts and runs for a minute and dies battery power good plugs and wires good and plenty of spark. also pulled off fuel line turned key and gas did come out wondering if possible regulator for...

check the fuel preasure , also will it restart after it dies, if you have spark and fuel it should run, maybe not enough fuel preasure? thats only if it wont restart, good luck.

Oct 10, 2009 | 1995 Buick LeSabre

1 Answer

Won't start

it could be a bad crankshaft sensor or a bad coil on the aurora on the cutlass there is a kill switch but i dont remember where its located

Jan 11, 2009 | 1997 Oldsmobile Aurora

2 Answers

My sons 1990 626 ran great. I change the oil and reconnected the speedometer cable that had vibrated loose. took it for a drive to make sure I didn't have any oil leaks. It ran for about 5 minutes and just...

we'll assume fuel is good..leaving spark and air..and management of systems(computer /sensors) the speedo cable was disconnected? try taking it loose again , test drive and report back please

Nov 20, 2008 | Mazda 626 Cars & Trucks

Not finding what you are looking for?
1997 Chevrolet Blazer Logo

55 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts


Level 3 Expert

78289 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

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

Answer questions

Manuals & User Guides