Checked ignition system, now backfires!
#1
Member
Thread Starter
iTrader: (1)
Join Date: Jul 2001
Location: Temecula, CA
Posts: 202
Likes: 0
Received 1 Like
on
1 Post
Car: '99 Cobra
Engine: 4.6 DOHC 32V
Transmission: T-45
Axle/Gears: 4.10
Checked ignition system, now backfires!
I went through the ignition system checking out every part (because i was experiencing a power loss)
anyway, it turned out to be a couple burned wires, so i replaced them, and now the car backfires
the car is getting spark at teh coil, and i tested it at the plug (jsut tried number 2) : my guess is taht the timing is off, because i turned the crank by hand (well, with a ratchet). i cant see why that would cause the timing to be off, but im just shooting in the dark now, and i'm about the take a 20 lb sledgehammer to this damn car
anyway, any suggestions would be greatly appreciated
thanks!
anyway, it turned out to be a couple burned wires, so i replaced them, and now the car backfires
the car is getting spark at teh coil, and i tested it at the plug (jsut tried number 2) : my guess is taht the timing is off, because i turned the crank by hand (well, with a ratchet). i cant see why that would cause the timing to be off, but im just shooting in the dark now, and i'm about the take a 20 lb sledgehammer to this damn car
anyway, any suggestions would be greatly appreciated
thanks!
#2
Supreme Member
Join Date: Sep 2001
Location: Flowery Branch, GA
Posts: 1,195
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1985 Iroc-Z
Engine: 1 BA 305 TPI
Transmission: Probuilt 700R4 - 2800 Stall Midwest
Axle/Gears: 3.42
Are you sure you got the wire connected to the correct plugs? Mine did the same thing when I plugged them up wrong.
#3
Supreme Member
iTrader: (1)
Join Date: Mar 2001
Location: Cherry Hill, NJ
Posts: 2,181
Likes: 0
Received 1 Like
on
1 Post
Car: 92 Trans Am 'Vert
Engine: 305 TPI
Transmission: 5 Speed
You crossed a couple spark plug wires. Look them over and make sure the firing order is correct when you put them back on.
#5
Member
Thread Starter
iTrader: (1)
Join Date: Jul 2001
Location: Temecula, CA
Posts: 202
Likes: 0
Received 1 Like
on
1 Post
Car: '99 Cobra
Engine: 4.6 DOHC 32V
Transmission: T-45
Axle/Gears: 4.10
Originally posted by 88 WS6 TransAm GTA
You crossed a couple spark plug wires. Look them over and make sure the firing order is correct when you put them back on.
You crossed a couple spark plug wires. Look them over and make sure the firing order is correct when you put them back on.
i read another post about how the distributor can get become 180 of the rest of hte engine, so you have to move the wires 4 spots ahead - i tried this with the same result as if i tried to start the car with the coil disconnected - just cranks, but at least it doesnt backfire
i have absoultely NO idea what it could be right now, and i hate to have to call my mechanic to come out and repair it
#6
Duff,
Turning the engine won't change the timing. Only loosening and turning the distributor will do that, unless the timing chain has slipped. Also, there is no way to get the distributor position 180° out of phase unless the distributor was removed.
Recheck the wires for #5 and #7. Those two are very easy to get mixed up.
Turning the engine won't change the timing. Only loosening and turning the distributor will do that, unless the timing chain has slipped. Also, there is no way to get the distributor position 180° out of phase unless the distributor was removed.
Recheck the wires for #5 and #7. Those two are very easy to get mixed up.
#7
Member
Thread Starter
iTrader: (1)
Join Date: Jul 2001
Location: Temecula, CA
Posts: 202
Likes: 0
Received 1 Like
on
1 Post
Car: '99 Cobra
Engine: 4.6 DOHC 32V
Transmission: T-45
Axle/Gears: 4.10
well, than i guess the timing chain is not busted, becuase when i turned the crank, the distributor moved also
therefore i must have wired the car wrong?
thanks a lot for the response vader!
therefore i must have wired the car wrong?
thanks a lot for the response vader!
Thread
Thread Starter
Forum
Replies
Last Post
9192camaro
Engine/Drivetrain/Suspension Parts for Sale
16
02-03-2019 12:21 AM
Fast355
DFI and ECM
14
12-02-2016 06:33 PM