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Recent Exhaust questions

This will be winded but it is a problem I consider important

Hello, this will be long winded but it is a problem I consider important which has been ongoing for over 9 months and remains unresolved. I'm a taxi driver and I drive a 2004 Safari. I am constantly stopping to pick up or drop off passengers during my 12 hour shift. It is absolutely unavoidable that one or both of the front windows are sometimes open as I sit and idle, loading or unloading passengers. During this time and especially when the sliding side door is open, the smell of exhaust fumes is volatile and overwhelming to the point where it burns my eyes, my nasal passages and makes me feel dizzy and nauseated. Passengers have complained and continue to make frequent negative comments. The fleet mechanics claim to have thoroughly checked the exhaust system for leaks and they swear there are none. I've asked if it might be a problem with the catalytic converter and they say no. At this point they basically shrug their shoulders. It is a problem unique to this vehicle as the rest of the fleet consists in part of probably another 25 Astrovans and Safaris, none of which emit such horrible exhaust fumes. Another driver who drives two 12 hour shifts a week in this same cab has complained as well, in fact he refuses to drive it if there is another cab available, or he will switch into a different cab if one becomes available during his shift. A third driver who filled in a vacant shift that was available in this cab, just once, complained and wrote up the problem as well. So I am wondering what you might think. Are there some Safari vans that emit particularly bad exhaust fumes and there is nothing that can be done about it? Is it possible that the mechanics are overlooking something? I understand that exhaust emission tests are no longer standard protocol these days, but I do wonder what the results of such a test would reveal. I apologize for the length of my question, but I am at the point where I feel I have no alternative but to take matters into my own hands in seeking help. I really don't look forward to feeling sick and dizzy at the end of every shift.JA: How old is the transmission? Have you noticed any leaking?Customer: The vehicle has 225,000 miles on it. I'll assume that is the age of the transmission. I have not noticed any leaks.JA: Are you hoping to fix this yourself? What have you tried so far?Customer: However...it is the job of the fleet inspectors to check and fill the fluids at the start of every 12 hour shift. Could they be over filling the transmission fluid?JA: Anything else you think the mechanic should know?Customer: So far I have followed the standard protocol within this taxi company whenever a mechanical problem or issue arises, describing and documenting the problem in writing. The results have been as I described them to you, unfortunately. If I thought I could fix the problem I'd sure be willing to tackle it. It's not my job though and it would probably be frowned upon, to say the least. As it stands now, one of the mechanics who recently spent several days with this cab in one of the bays repairing some rear end damage approached me afterwards and admitted to me that he understands now what I mean by the excessively harsh exhaust fumes, but that is as far as it went.

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Eric

Retired

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Two weeks now my truck once in the morning would start and

For about two weeks now my truck once in the morning would start and then stall. But would be fine and start up the rest of the day perfectly. Friday, I changed my fuel filter, thinking that was the problem, it wasn't. Now it starts and sometimes stalls or sometimes won't start at all. It idles but the rpms won't go up when I push the accelerator. Every few times I could get the rpms to 1000 rpms. I have a code P0087, which is low fuel pressure, I think. Any ideas?JA: Is the fuel filter an external one, or is it inside the tank?Customer: ExternalJA: What is the model/year of your Chevy?Customer: 2003 Chevy Silverado 2500hdJA: Are you hoping to fix this yourself? What have you tried so far?Customer: Yes. And I found the bleeder screw on the fuel filter housing was loose and broke when I went to tighten it. So I bought a new one, thinking that was the problem, but it wasn't. So only changed the fuel filter back to the old one to see if I had a faulty filter, but it did the same thing. And the air bleeder plugJA: Anything else you think the mechanic should know?Customer: Blows a very faint white or grey cloud, really can't tell

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TIM MOHR

SHOP OWNER

Master's Degree

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I have a 99 gmc sonoma. 2.2L Manual transmission. When I

I have a 99 gmc sonoma. 2.2L Manual transmission. When I accelerate in first, second and third gear, it the truck bucks like when I first started to learn to drive. It does that when it's going over hills or accelerate. I've changed the fuel filter, fuel pump, spark plugs, wires. What could cause it to buck that bad?JA: Has the clutch been slipping? Are you having any trouble shifting?Customer: NoJA: What year is your Sonoma?Customer: 99JA: Are you hoping to fix this yourself? What have you tried so far?Customer: Yes, I'd like to take care of it myself. I've replaced the fuel filter, fuel pump, spark plugs, wiresJA: Anything else you think the mechanic should know?Customer: It does it when accelerating

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Dan

Automotive Technician

Vocational, Technical or Trade Scho

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Overheating- thermostat new- was told the engine has a

overheating- thermostat new- was told the engine has a cracked block, no coolant leaking to the ground-- temp guage rides at 215JA: How old are the hoses? And have you tested the actual mix of your coolant?Customer: Hoses have not collapsed, look pretty new- have observed them at the end of traveling with hood openJA: What is the model/year of your Chevy?Customer: 1989 - 3500 4x4JA: Are you hoping to fix this yourself? What have you tried so far?Customer: I fist started driving it a few days ago, it is a loaner from a nice person-- it was delivered to me just after the thermostat was changed. Took it to my mechanic thinking it needed a radiator flush as the next step- he took it to a smog shop and they detected something in the exhaust that indicated a cracked block, it ws leaking around the exit hose from the block... used some engine crack repair in the cooloing system and the external leak stopped.. Hoping it was stopped internallh also-- while observie how it was heating up while running, checkec the transmission fluid and it was absoluty empty-- coud this be contributing to the overheating also?JA: OK. To minimize me, please click the down arrow at the top right corner of this box.Customer: do you want the VJA: Anything else you think the mechanic should know?Customer: I suspect the temp gauge may be reading high-- I used a thermometer on the opened radiator while it was running and showing 215 on the gauge in the truck cab but the thermometer in the radiator never got more that 170-- not sure abourt the accuracy of it either-- just another indicator

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Roy

shop foreman

Associate Degree

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Im working on a 93 Chevy S10 Blazer that I just had new

Im working on a 93 Chevy S10 Blazer that I just had new plugs coil and wires put on it. I also at the same time had a new fuel pump, fuel pump relay and oil sending unit put on it. Upon recieving it back it runs real doggy and will die at low RPMS. I guess I would like to ask your thoughts but also the plug wire order. and how to identify the # ***** position on the distribute cap

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Tim's Auto Repair

Mechanic

High School or GED

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17,788 satisfied customers
I have a 2003 chevy tahoe that has recently begun to

I have a 2003 chevy tahoe that has recently begun to randomly chug when driving, it can be while accelerating or cruising on the highway. It is not consistent. The spark plugs, wire, fuel filter and intake manifold have recently been replaced and the issue remainsJA: Is the fuel filter an external one, or is it inside the tank?Customer: externalJA: What is the model of your '03 Chevy?Customer: tahoeJA: Are you hoping to fix this yourself? What have you tried so far?Customer: replace spark plugs and wires, replaced intake manifold, cleaned throttle body and MAF sensor, replaced fuel filterJA: Anything else you think the mechanic should know?Customer: no

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Dan

Automotive Technician

Vocational, Technical or Trade Scho

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I have 2002 Trail Blazer with a 4.2 L engine,I am replacing

Hi,I have 2002 Trail Blazer with a 4.2 L engine,I am replacing a cracked exhaust manifold.I already have the exhaust manifold out and ready to put the new one in.I was told by a friend to use Permatex Spray-A-Gasket to hold the manifold gaskets in place while I am installing the manifold,is this the best way?

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Ron Z.

Vocational, Technical or Trade Scho

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21,958 satisfied customers
I had a severe miss in the engine #6 cylinder was caked with

I had a severe miss in the engine #6 cylinder was caked with carbon residue discovered burned valve replaced head now one push rod seems shorter than all others tapping/clattering now and zero oil pressureJA: How old is your oil pump? Has the check engine light come on?Customer: Yes check engine and service stabilitrak traction control. Oil pump same as when I bought in 2010JA: What is the model of your '10 Chevy?Customer: It's actually an 08 LTJA: Are you hoping to fix this yourself? What have you tried so far?Customer: I replaced the head and gaskets and tried replacing several coil packs spark plugs and wiresJA: Anything else you think the mechanic should know?Customer: The push rod on #6 has a gap to the rocker arm as wide as the thickness of a pinky fingerJA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Chevy Mechanic about your situation and then connect you two.

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virtual auto tech.

High School or GED

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524 satisfied customers
Have a 2003 Chevy Impala has a 3400 engine that blew out,

Have a 2003 Chevy Impala has a 3400 engine that blew out, want to replace with a 3800. I local garage said they can do it but they want to much money and will not trade any info with me. It can be done I guess but what do I need to do?

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Roy

shop foreman

Associate Degree

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6,650 satisfied customers
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