'96 TL 2.5L No Start - weak spark causes?
01-22-2016, 06:42 PM
#1
'96 TL 2.5L No Start - weak spark causes?
Hi all!
My son has a 1996 Acura TL w/ 2.5L engine. The engine won’t start - it cranks over well and seems like it’s about to start, but won’t.
I’ve used an ignition tester, and I’m getting a yellowish color spark. I’d expect whitish blue, correct?. So my thinking is that the spark is too weak to fire the engine.
The problem is I’ve changed EVERY ignition component I can think of. The plug wires are less than a year old. The cap, rotor, and plugs are brand new. I’ve tried two different ignition coils, even though they both seemed to check good with the Ohm meter. I’ve even swapped the ignition control module with a used one from the salvage yard. I don’t think there is anything electrical inside the distributor to fail.
In fact, I think I’ve eliminated everything down stream from the coil, since I’m getting yellow spark straight out of the coil wire.
I’m starting to wonder if the problem could be something besides an ignition issue. But shouldn’t the tester be showing bright white or blue spark on a good ignition?
What else can I try? I’m at my wit’s end here! ANY help is appreciated
Thanks in advance
My son has a 1996 Acura TL w/ 2.5L engine. The engine won’t start - it cranks over well and seems like it’s about to start, but won’t.
I’ve used an ignition tester, and I’m getting a yellowish color spark. I’d expect whitish blue, correct?. So my thinking is that the spark is too weak to fire the engine.
The problem is I’ve changed EVERY ignition component I can think of. The plug wires are less than a year old. The cap, rotor, and plugs are brand new. I’ve tried two different ignition coils, even though they both seemed to check good with the Ohm meter. I’ve even swapped the ignition control module with a used one from the salvage yard. I don’t think there is anything electrical inside the distributor to fail.
In fact, I think I’ve eliminated everything down stream from the coil, since I’m getting yellow spark straight out of the coil wire.
I’m starting to wonder if the problem could be something besides an ignition issue. But shouldn’t the tester be showing bright white or blue spark on a good ignition?
What else can I try? I’m at my wit’s end here! ANY help is appreciated
Thanks in advance
02-03-2016, 09:00 PM
#2
Mr.Helpful Diagram
Main Relay more than likely, Have you checked for fuel pressure ?
02-05-2016, 09:14 AM
#3
Yeah, Thanks for the reply. I've got plenty of fuel pressure. Plenty of fuel in general - the plugs are wet with fuel after a start attempt.
Since my original post, i've purchased an HEI spark tester, and it shows a nice blue-white spark jumping a good distance. So I'm backing off on the weak spark theory.
Finally had it towed into a local shop. Awaiting diagnosis now... hopefully LOL
Since my original post, i've purchased an HEI spark tester, and it shows a nice blue-white spark jumping a good distance. So I'm backing off on the weak spark theory.
Finally had it towed into a local shop. Awaiting diagnosis now... hopefully LOL
04-20-2016, 01:39 PM
#5
5th Gear
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Just bought a 1998 2.5tl for $275, it had a no start problem.
It had been at 2 dealers & a few repair shop lady was tired of dumping cash into it.
It acted like it wanted to run but would only sputter when starting.
After a an hour of cking for problems i started thinking the upper converter may be clogged.
I backed off the bolts of the exhaust manifold about 1/4 inch & tryed to start it. It started up & ran fine.
Hopes this helps you.
It had been at 2 dealers & a few repair shop lady was tired of dumping cash into it.
It acted like it wanted to run but would only sputter when starting.
After a an hour of cking for problems i started thinking the upper converter may be clogged.
I backed off the bolts of the exhaust manifold about 1/4 inch & tryed to start it. It started up & ran fine.
Hopes this helps you.
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